merge

2017-02-04 17:15:56 +01:00 · 2017-02-04 17:15:56 +01:00 · 842dd43b21
parent 3bda12d20c 02245b75a8
commit 842dd43b21
81 changed files with 6798 additions and 558 deletions
--- a/.gitignore
+++ b/.gitignore
@ -28,3 +28,4 @@ target/
 spring-openid/src/main/resources/application.properties
 .recommenders/
 /spring-hibernate4/nbproject/
+spring-security-openid/src/main/resources/application.properties
--- a/apache-thrift/generated/com/baeldung/thrift/impl/CrossPlatformResource.java
+++ b/apache-thrift/generated/com/baeldung/thrift/impl/CrossPlatformResource.java
@ -0,0 +1,579 @@
+/**
+ * Autogenerated by Thrift Compiler (0.10.0)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ *  @generated
+ */
+package com.baeldung.thrift.impl;
+
+@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked", "unused"})
+@javax.annotation.Generated(value = "Autogenerated by Thrift Compiler (0.10.0)", date = "2017-02-01")
+public class CrossPlatformResource implements org.apache.thrift.TBase<CrossPlatformResource, CrossPlatformResource._Fields>, java.io.Serializable, Cloneable, Comparable<CrossPlatformResource> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("CrossPlatformResource");
+
+  private static final org.apache.thrift.protocol.TField ID_FIELD_DESC = new org.apache.thrift.protocol.TField("id", org.apache.thrift.protocol.TType.I32, (short)1);
+  private static final org.apache.thrift.protocol.TField NAME_FIELD_DESC = new org.apache.thrift.protocol.TField("name", org.apache.thrift.protocol.TType.STRING, (short)2);
+  private static final org.apache.thrift.protocol.TField SALUTATION_FIELD_DESC = new org.apache.thrift.protocol.TField("salutation", org.apache.thrift.protocol.TType.STRING, (short)3);
+
+  private static final org.apache.thrift.scheme.SchemeFactory STANDARD_SCHEME_FACTORY = new CrossPlatformResourceStandardSchemeFactory();
+  private static final org.apache.thrift.scheme.SchemeFactory TUPLE_SCHEME_FACTORY = new CrossPlatformResourceTupleSchemeFactory();
+
+  public int id; // required
+  public java.lang.String name; // required
+  public java.lang.String salutation; // optional
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+    ID((short)1, "id"),
+    NAME((short)2, "name"),
+    SALUTATION((short)3, "salutation");
+
+    private static final java.util.Map<java.lang.String, _Fields> byName = new java.util.HashMap<java.lang.String, _Fields>();
+
+    static {
+      for (_Fields field : java.util.EnumSet.allOf(_Fields.class)) {
+        byName.put(field.getFieldName(), field);
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, or null if its not found.
+     */
+    public static _Fields findByThriftId(int fieldId) {
+      switch(fieldId) {
+        case 1: // ID
+          return ID;
+        case 2: // NAME
+          return NAME;
+        case 3: // SALUTATION
+          return SALUTATION;
+        default:
+          return null;
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, throwing an exception
+     * if it is not found.
+     */
+    public static _Fields findByThriftIdOrThrow(int fieldId) {
+      _Fields fields = findByThriftId(fieldId);
+      if (fields == null) throw new java.lang.IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+      return fields;
+    }
+
+    /**
+     * Find the _Fields constant that matches name, or null if its not found.
+     */
+    public static _Fields findByName(java.lang.String name) {
+      return byName.get(name);
+    }
+
+    private final short _thriftId;
+    private final java.lang.String _fieldName;
+
+    _Fields(short thriftId, java.lang.String fieldName) {
+      _thriftId = thriftId;
+      _fieldName = fieldName;
+    }
+
+    public short getThriftFieldId() {
+      return _thriftId;
+    }
+
+    public java.lang.String getFieldName() {
+      return _fieldName;
+    }
+  }
+
+  // isset id assignments
+  private static final int __ID_ISSET_ID = 0;
+  private byte __isset_bitfield = 0;
+  private static final _Fields optionals[] = {_Fields.SALUTATION};
+  public static final java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+  static {
+    java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new java.util.EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+    tmpMap.put(_Fields.ID, new org.apache.thrift.meta_data.FieldMetaData("id", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.I32)));
+    tmpMap.put(_Fields.NAME, new org.apache.thrift.meta_data.FieldMetaData("name", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    tmpMap.put(_Fields.SALUTATION, new org.apache.thrift.meta_data.FieldMetaData("salutation", org.apache.thrift.TFieldRequirementType.OPTIONAL, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    metaDataMap = java.util.Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(CrossPlatformResource.class, metaDataMap);
+  }
+
+  public CrossPlatformResource() {
+  }
+
+  public CrossPlatformResource(
+    int id,
+    java.lang.String name)
+  {
+    this();
+    this.id = id;
+    setIdIsSet(true);
+    this.name = name;
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public CrossPlatformResource(CrossPlatformResource other) {
+    __isset_bitfield = other.__isset_bitfield;
+    this.id = other.id;
+    if (other.isSetName()) {
+      this.name = other.name;
+    }
+    if (other.isSetSalutation()) {
+      this.salutation = other.salutation;
+    }
+  }
+
+  public CrossPlatformResource deepCopy() {
+    return new CrossPlatformResource(this);
+  }
+
+  @Override
+  public void clear() {
+    setIdIsSet(false);
+    this.id = 0;
+    this.name = null;
+    this.salutation = null;
+  }
+
+  public int getId() {
+    return this.id;
+  }
+
+  public CrossPlatformResource setId(int id) {
+    this.id = id;
+    setIdIsSet(true);
+    return this;
+  }
+
+  public void unsetId() {
+    __isset_bitfield = org.apache.thrift.EncodingUtils.clearBit(__isset_bitfield, __ID_ISSET_ID);
+  }
+
+  /** Returns true if field id is set (has been assigned a value) and false otherwise */
+  public boolean isSetId() {
+    return org.apache.thrift.EncodingUtils.testBit(__isset_bitfield, __ID_ISSET_ID);
+  }
+
+  public void setIdIsSet(boolean value) {
+    __isset_bitfield = org.apache.thrift.EncodingUtils.setBit(__isset_bitfield, __ID_ISSET_ID, value);
+  }
+
+  public java.lang.String getName() {
+    return this.name;
+  }
+
+  public CrossPlatformResource setName(java.lang.String name) {
+    this.name = name;
+    return this;
+  }
+
+  public void unsetName() {
+    this.name = null;
+  }
+
+  /** Returns true if field name is set (has been assigned a value) and false otherwise */
+  public boolean isSetName() {
+    return this.name != null;
+  }
+
+  public void setNameIsSet(boolean value) {
+    if (!value) {
+      this.name = null;
+    }
+  }
+
+  public java.lang.String getSalutation() {
+    return this.salutation;
+  }
+
+  public CrossPlatformResource setSalutation(java.lang.String salutation) {
+    this.salutation = salutation;
+    return this;
+  }
+
+  public void unsetSalutation() {
+    this.salutation = null;
+  }
+
+  /** Returns true if field salutation is set (has been assigned a value) and false otherwise */
+  public boolean isSetSalutation() {
+    return this.salutation != null;
+  }
+
+  public void setSalutationIsSet(boolean value) {
+    if (!value) {
+      this.salutation = null;
+    }
+  }
+
+  public void setFieldValue(_Fields field, java.lang.Object value) {
+    switch (field) {
+    case ID:
+      if (value == null) {
+        unsetId();
+      } else {
+        setId((java.lang.Integer)value);
+      }
+      break;
+
+    case NAME:
+      if (value == null) {
+        unsetName();
+      } else {
+        setName((java.lang.String)value);
+      }
+      break;
+
+    case SALUTATION:
+      if (value == null) {
+        unsetSalutation();
+      } else {
+        setSalutation((java.lang.String)value);
+      }
+      break;
+
+    }
+  }
+
+  public java.lang.Object getFieldValue(_Fields field) {
+    switch (field) {
+    case ID:
+      return getId();
+
+    case NAME:
+      return getName();
+
+    case SALUTATION:
+      return getSalutation();
+
+    }
+    throw new java.lang.IllegalStateException();
+  }
+
+  /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+  public boolean isSet(_Fields field) {
+    if (field == null) {
+      throw new java.lang.IllegalArgumentException();
+    }
+
+    switch (field) {
+    case ID:
+      return isSetId();
+    case NAME:
+      return isSetName();
+    case SALUTATION:
+      return isSetSalutation();
+    }
+    throw new java.lang.IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(java.lang.Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof CrossPlatformResource)
+      return this.equals((CrossPlatformResource)that);
+    return false;
+  }
+
+  public boolean equals(CrossPlatformResource that) {
+    if (that == null)
+      return false;
+    if (this == that)
+      return true;
+
+    boolean this_present_id = true;
+    boolean that_present_id = true;
+    if (this_present_id || that_present_id) {
+      if (!(this_present_id && that_present_id))
+        return false;
+      if (this.id != that.id)
+        return false;
+    }
+
+    boolean this_present_name = true && this.isSetName();
+    boolean that_present_name = true && that.isSetName();
+    if (this_present_name || that_present_name) {
+      if (!(this_present_name && that_present_name))
+        return false;
+      if (!this.name.equals(that.name))
+        return false;
+    }
+
+    boolean this_present_salutation = true && this.isSetSalutation();
+    boolean that_present_salutation = true && that.isSetSalutation();
+    if (this_present_salutation || that_present_salutation) {
+      if (!(this_present_salutation && that_present_salutation))
+        return false;
+      if (!this.salutation.equals(that.salutation))
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    int hashCode = 1;
+
+    hashCode = hashCode * 8191 + id;
+
+    hashCode = hashCode * 8191 + ((isSetName()) ? 131071 : 524287);
+    if (isSetName())
+      hashCode = hashCode * 8191 + name.hashCode();
+
+    hashCode = hashCode * 8191 + ((isSetSalutation()) ? 131071 : 524287);
+    if (isSetSalutation())
+      hashCode = hashCode * 8191 + salutation.hashCode();
+
+    return hashCode;
+  }
+
+  @Override
+  public int compareTo(CrossPlatformResource other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    lastComparison = java.lang.Boolean.valueOf(isSetId()).compareTo(other.isSetId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.id, other.id);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = java.lang.Boolean.valueOf(isSetName()).compareTo(other.isSetName());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetName()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.name, other.name);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = java.lang.Boolean.valueOf(isSetSalutation()).compareTo(other.isSetSalutation());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetSalutation()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.salutation, other.salutation);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    return 0;
+  }
+
+  public _Fields fieldForId(int fieldId) {
+    return _Fields.findByThriftId(fieldId);
+  }
+
+  public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+    scheme(iprot).read(iprot, this);
+  }
+
+  public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+    scheme(oprot).write(oprot, this);
+  }
+
+  @Override
+  public java.lang.String toString() {
+    java.lang.StringBuilder sb = new java.lang.StringBuilder("CrossPlatformResource(");
+    boolean first = true;
+
+    sb.append("id:");
+    sb.append(this.id);
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("name:");
+    if (this.name == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.name);
+    }
+    first = false;
+    if (isSetSalutation()) {
+      if (!first) sb.append(", ");
+      sb.append("salutation:");
+      if (this.salutation == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.salutation);
+      }
+      first = false;
+    }
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    // check for sub-struct validity
+  }
+
+  private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+    try {
+      write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, java.lang.ClassNotFoundException {
+    try {
+      // it doesn't seem like you should have to do this, but java serialization is wacky, and doesn't call the default constructor.
+      __isset_bitfield = 0;
+      read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private static class CrossPlatformResourceStandardSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
+    public CrossPlatformResourceStandardScheme getScheme() {
+      return new CrossPlatformResourceStandardScheme();
+    }
+  }
+
+  private static class CrossPlatformResourceStandardScheme extends org.apache.thrift.scheme.StandardScheme<CrossPlatformResource> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, CrossPlatformResource struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TField schemeField;
+      iprot.readStructBegin();
+      while (true)
+      {
+        schemeField = iprot.readFieldBegin();
+        if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+          break;
+        }
+        switch (schemeField.id) {
+          case 1: // ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.I32) {
+              struct.id = iprot.readI32();
+              struct.setIdIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 2: // NAME
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.name = iprot.readString();
+              struct.setNameIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 3: // SALUTATION
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.salutation = iprot.readString();
+              struct.setSalutationIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          default:
+            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+        }
+        iprot.readFieldEnd();
+      }
+      iprot.readStructEnd();
+
+      // check for required fields of primitive type, which can't be checked in the validate method
+      struct.validate();
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot, CrossPlatformResource struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      oprot.writeFieldBegin(ID_FIELD_DESC);
+      oprot.writeI32(struct.id);
+      oprot.writeFieldEnd();
+      if (struct.name != null) {
+        oprot.writeFieldBegin(NAME_FIELD_DESC);
+        oprot.writeString(struct.name);
+        oprot.writeFieldEnd();
+      }
+      if (struct.salutation != null) {
+        if (struct.isSetSalutation()) {
+          oprot.writeFieldBegin(SALUTATION_FIELD_DESC);
+          oprot.writeString(struct.salutation);
+          oprot.writeFieldEnd();
+        }
+      }
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class CrossPlatformResourceTupleSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
+    public CrossPlatformResourceTupleScheme getScheme() {
+      return new CrossPlatformResourceTupleScheme();
+    }
+  }
+
+  private static class CrossPlatformResourceTupleScheme extends org.apache.thrift.scheme.TupleScheme<CrossPlatformResource> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, CrossPlatformResource struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TTupleProtocol oprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
+      java.util.BitSet optionals = new java.util.BitSet();
+      if (struct.isSetId()) {
+        optionals.set(0);
+      }
+      if (struct.isSetName()) {
+        optionals.set(1);
+      }
+      if (struct.isSetSalutation()) {
+        optionals.set(2);
+      }
+      oprot.writeBitSet(optionals, 3);
+      if (struct.isSetId()) {
+        oprot.writeI32(struct.id);
+      }
+      if (struct.isSetName()) {
+        oprot.writeString(struct.name);
+      }
+      if (struct.isSetSalutation()) {
+        oprot.writeString(struct.salutation);
+      }
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, CrossPlatformResource struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TTupleProtocol iprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
+      java.util.BitSet incoming = iprot.readBitSet(3);
+      if (incoming.get(0)) {
+        struct.id = iprot.readI32();
+        struct.setIdIsSet(true);
+      }
+      if (incoming.get(1)) {
+        struct.name = iprot.readString();
+        struct.setNameIsSet(true);
+      }
+      if (incoming.get(2)) {
+        struct.salutation = iprot.readString();
+        struct.setSalutationIsSet(true);
+      }
+    }
+  }
+
+  private static <S extends org.apache.thrift.scheme.IScheme> S scheme(org.apache.thrift.protocol.TProtocol proto) {
+    return (org.apache.thrift.scheme.StandardScheme.class.equals(proto.getScheme()) ? STANDARD_SCHEME_FACTORY : TUPLE_SCHEME_FACTORY).getScheme();
+  }
+}
+
--- a/apache-thrift/generated/com/baeldung/thrift/impl/CrossPlatformService.java
+++ b/apache-thrift/generated/com/baeldung/thrift/impl/CrossPlatformService.java
--- a/apache-thrift/generated/com/baeldung/thrift/impl/InvalidOperationException.java
+++ b/apache-thrift/generated/com/baeldung/thrift/impl/InvalidOperationException.java
@ -0,0 +1,472 @@
+/**
+ * Autogenerated by Thrift Compiler (0.10.0)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ *  @generated
+ */
+package com.baeldung.thrift.impl;
+
+@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked", "unused"})
+@javax.annotation.Generated(value = "Autogenerated by Thrift Compiler (0.10.0)", date = "2017-02-01")
+public class InvalidOperationException extends org.apache.thrift.TException implements org.apache.thrift.TBase<InvalidOperationException, InvalidOperationException._Fields>, java.io.Serializable, Cloneable, Comparable<InvalidOperationException> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("InvalidOperationException");
+
+  private static final org.apache.thrift.protocol.TField CODE_FIELD_DESC = new org.apache.thrift.protocol.TField("code", org.apache.thrift.protocol.TType.I32, (short)1);
+  private static final org.apache.thrift.protocol.TField DESCRIPTION_FIELD_DESC = new org.apache.thrift.protocol.TField("description", org.apache.thrift.protocol.TType.STRING, (short)2);
+
+  private static final org.apache.thrift.scheme.SchemeFactory STANDARD_SCHEME_FACTORY = new InvalidOperationExceptionStandardSchemeFactory();
+  private static final org.apache.thrift.scheme.SchemeFactory TUPLE_SCHEME_FACTORY = new InvalidOperationExceptionTupleSchemeFactory();
+
+  public int code; // required
+  public java.lang.String description; // required
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+    CODE((short)1, "code"),
+    DESCRIPTION((short)2, "description");
+
+    private static final java.util.Map<java.lang.String, _Fields> byName = new java.util.HashMap<java.lang.String, _Fields>();
+
+    static {
+      for (_Fields field : java.util.EnumSet.allOf(_Fields.class)) {
+        byName.put(field.getFieldName(), field);
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, or null if its not found.
+     */
+    public static _Fields findByThriftId(int fieldId) {
+      switch(fieldId) {
+        case 1: // CODE
+          return CODE;
+        case 2: // DESCRIPTION
+          return DESCRIPTION;
+        default:
+          return null;
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, throwing an exception
+     * if it is not found.
+     */
+    public static _Fields findByThriftIdOrThrow(int fieldId) {
+      _Fields fields = findByThriftId(fieldId);
+      if (fields == null) throw new java.lang.IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+      return fields;
+    }
+
+    /**
+     * Find the _Fields constant that matches name, or null if its not found.
+     */
+    public static _Fields findByName(java.lang.String name) {
+      return byName.get(name);
+    }
+
+    private final short _thriftId;
+    private final java.lang.String _fieldName;
+
+    _Fields(short thriftId, java.lang.String fieldName) {
+      _thriftId = thriftId;
+      _fieldName = fieldName;
+    }
+
+    public short getThriftFieldId() {
+      return _thriftId;
+    }
+
+    public java.lang.String getFieldName() {
+      return _fieldName;
+    }
+  }
+
+  // isset id assignments
+  private static final int __CODE_ISSET_ID = 0;
+  private byte __isset_bitfield = 0;
+  public static final java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+  static {
+    java.util.Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new java.util.EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+    tmpMap.put(_Fields.CODE, new org.apache.thrift.meta_data.FieldMetaData("code", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.I32)));
+    tmpMap.put(_Fields.DESCRIPTION, new org.apache.thrift.meta_data.FieldMetaData("description", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    metaDataMap = java.util.Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(InvalidOperationException.class, metaDataMap);
+  }
+
+  public InvalidOperationException() {
+  }
+
+  public InvalidOperationException(
+    int code,
+    java.lang.String description)
+  {
+    this();
+    this.code = code;
+    setCodeIsSet(true);
+    this.description = description;
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public InvalidOperationException(InvalidOperationException other) {
+    __isset_bitfield = other.__isset_bitfield;
+    this.code = other.code;
+    if (other.isSetDescription()) {
+      this.description = other.description;
+    }
+  }
+
+  public InvalidOperationException deepCopy() {
+    return new InvalidOperationException(this);
+  }
+
+  @Override
+  public void clear() {
+    setCodeIsSet(false);
+    this.code = 0;
+    this.description = null;
+  }
+
+  public int getCode() {
+    return this.code;
+  }
+
+  public InvalidOperationException setCode(int code) {
+    this.code = code;
+    setCodeIsSet(true);
+    return this;
+  }
+
+  public void unsetCode() {
+    __isset_bitfield = org.apache.thrift.EncodingUtils.clearBit(__isset_bitfield, __CODE_ISSET_ID);
+  }
+
+  /** Returns true if field code is set (has been assigned a value) and false otherwise */
+  public boolean isSetCode() {
+    return org.apache.thrift.EncodingUtils.testBit(__isset_bitfield, __CODE_ISSET_ID);
+  }
+
+  public void setCodeIsSet(boolean value) {
+    __isset_bitfield = org.apache.thrift.EncodingUtils.setBit(__isset_bitfield, __CODE_ISSET_ID, value);
+  }
+
+  public java.lang.String getDescription() {
+    return this.description;
+  }
+
+  public InvalidOperationException setDescription(java.lang.String description) {
+    this.description = description;
+    return this;
+  }
+
+  public void unsetDescription() {
+    this.description = null;
+  }
+
+  /** Returns true if field description is set (has been assigned a value) and false otherwise */
+  public boolean isSetDescription() {
+    return this.description != null;
+  }
+
+  public void setDescriptionIsSet(boolean value) {
+    if (!value) {
+      this.description = null;
+    }
+  }
+
+  public void setFieldValue(_Fields field, java.lang.Object value) {
+    switch (field) {
+    case CODE:
+      if (value == null) {
+        unsetCode();
+      } else {
+        setCode((java.lang.Integer)value);
+      }
+      break;
+
+    case DESCRIPTION:
+      if (value == null) {
+        unsetDescription();
+      } else {
+        setDescription((java.lang.String)value);
+      }
+      break;
+
+    }
+  }
+
+  public java.lang.Object getFieldValue(_Fields field) {
+    switch (field) {
+    case CODE:
+      return getCode();
+
+    case DESCRIPTION:
+      return getDescription();
+
+    }
+    throw new java.lang.IllegalStateException();
+  }
+
+  /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+  public boolean isSet(_Fields field) {
+    if (field == null) {
+      throw new java.lang.IllegalArgumentException();
+    }
+
+    switch (field) {
+    case CODE:
+      return isSetCode();
+    case DESCRIPTION:
+      return isSetDescription();
+    }
+    throw new java.lang.IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(java.lang.Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof InvalidOperationException)
+      return this.equals((InvalidOperationException)that);
+    return false;
+  }
+
+  public boolean equals(InvalidOperationException that) {
+    if (that == null)
+      return false;
+    if (this == that)
+      return true;
+
+    boolean this_present_code = true;
+    boolean that_present_code = true;
+    if (this_present_code || that_present_code) {
+      if (!(this_present_code && that_present_code))
+        return false;
+      if (this.code != that.code)
+        return false;
+    }
+
+    boolean this_present_description = true && this.isSetDescription();
+    boolean that_present_description = true && that.isSetDescription();
+    if (this_present_description || that_present_description) {
+      if (!(this_present_description && that_present_description))
+        return false;
+      if (!this.description.equals(that.description))
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    int hashCode = 1;
+
+    hashCode = hashCode * 8191 + code;
+
+    hashCode = hashCode * 8191 + ((isSetDescription()) ? 131071 : 524287);
+    if (isSetDescription())
+      hashCode = hashCode * 8191 + description.hashCode();
+
+    return hashCode;
+  }
+
+  @Override
+  public int compareTo(InvalidOperationException other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    lastComparison = java.lang.Boolean.valueOf(isSetCode()).compareTo(other.isSetCode());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetCode()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.code, other.code);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = java.lang.Boolean.valueOf(isSetDescription()).compareTo(other.isSetDescription());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetDescription()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.description, other.description);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    return 0;
+  }
+
+  public _Fields fieldForId(int fieldId) {
+    return _Fields.findByThriftId(fieldId);
+  }
+
+  public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+    scheme(iprot).read(iprot, this);
+  }
+
+  public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+    scheme(oprot).write(oprot, this);
+  }
+
+  @Override
+  public java.lang.String toString() {
+    java.lang.StringBuilder sb = new java.lang.StringBuilder("InvalidOperationException(");
+    boolean first = true;
+
+    sb.append("code:");
+    sb.append(this.code);
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("description:");
+    if (this.description == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.description);
+    }
+    first = false;
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    // check for sub-struct validity
+  }
+
+  private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+    try {
+      write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, java.lang.ClassNotFoundException {
+    try {
+      // it doesn't seem like you should have to do this, but java serialization is wacky, and doesn't call the default constructor.
+      __isset_bitfield = 0;
+      read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private static class InvalidOperationExceptionStandardSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
+    public InvalidOperationExceptionStandardScheme getScheme() {
+      return new InvalidOperationExceptionStandardScheme();
+    }
+  }
+
+  private static class InvalidOperationExceptionStandardScheme extends org.apache.thrift.scheme.StandardScheme<InvalidOperationException> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, InvalidOperationException struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TField schemeField;
+      iprot.readStructBegin();
+      while (true)
+      {
+        schemeField = iprot.readFieldBegin();
+        if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+          break;
+        }
+        switch (schemeField.id) {
+          case 1: // CODE
+            if (schemeField.type == org.apache.thrift.protocol.TType.I32) {
+              struct.code = iprot.readI32();
+              struct.setCodeIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 2: // DESCRIPTION
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.description = iprot.readString();
+              struct.setDescriptionIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          default:
+            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+        }
+        iprot.readFieldEnd();
+      }
+      iprot.readStructEnd();
+
+      // check for required fields of primitive type, which can't be checked in the validate method
+      struct.validate();
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot, InvalidOperationException struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      oprot.writeFieldBegin(CODE_FIELD_DESC);
+      oprot.writeI32(struct.code);
+      oprot.writeFieldEnd();
+      if (struct.description != null) {
+        oprot.writeFieldBegin(DESCRIPTION_FIELD_DESC);
+        oprot.writeString(struct.description);
+        oprot.writeFieldEnd();
+      }
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class InvalidOperationExceptionTupleSchemeFactory implements org.apache.thrift.scheme.SchemeFactory {
+    public InvalidOperationExceptionTupleScheme getScheme() {
+      return new InvalidOperationExceptionTupleScheme();
+    }
+  }
+
+  private static class InvalidOperationExceptionTupleScheme extends org.apache.thrift.scheme.TupleScheme<InvalidOperationException> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, InvalidOperationException struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TTupleProtocol oprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
+      java.util.BitSet optionals = new java.util.BitSet();
+      if (struct.isSetCode()) {
+        optionals.set(0);
+      }
+      if (struct.isSetDescription()) {
+        optionals.set(1);
+      }
+      oprot.writeBitSet(optionals, 2);
+      if (struct.isSetCode()) {
+        oprot.writeI32(struct.code);
+      }
+      if (struct.isSetDescription()) {
+        oprot.writeString(struct.description);
+      }
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, InvalidOperationException struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TTupleProtocol iprot = (org.apache.thrift.protocol.TTupleProtocol) prot;
+      java.util.BitSet incoming = iprot.readBitSet(2);
+      if (incoming.get(0)) {
+        struct.code = iprot.readI32();
+        struct.setCodeIsSet(true);
+      }
+      if (incoming.get(1)) {
+        struct.description = iprot.readString();
+        struct.setDescriptionIsSet(true);
+      }
+    }
+  }
+
+  private static <S extends org.apache.thrift.scheme.IScheme> S scheme(org.apache.thrift.protocol.TProtocol proto) {
+    return (org.apache.thrift.scheme.StandardScheme.class.equals(proto.getScheme()) ? STANDARD_SCHEME_FACTORY : TUPLE_SCHEME_FACTORY).getScheme();
+  }
+}
+
--- a/apache-thrift/pom.xml
+++ b/apache-thrift/pom.xml
@ -0,0 +1,68 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung</groupId>
+    <artifactId>apache-thrift</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <packaging>pom</packaging>
+
+    <properties>
+        <java.versin>1.8</java.versin>
+        <junit.version>4.12</junit.version>
+        <maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
+        <thrift.version>0.10.0</thrift.version>
+        <maven-thrift.version>0.1.11</maven-thrift.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.thrift</groupId>
+            <artifactId>libthrift</artifactId>
+            <version>${thrift.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-simple</artifactId>
+            <version>1.7.12</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <defaultGoal>install</defaultGoal>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>build-helper-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <phase>generate-sources</phase>
+                        <goals><goal>add-source</goal></goals>
+                        <configuration>
+                            <sources>
+                                <source>generated</source>
+                            </sources>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>
--- a/apache-thrift/src/main/java/com/baeldung/thrift/Application.java
+++ b/apache-thrift/src/main/java/com/baeldung/thrift/Application.java
@ -0,0 +1,11 @@
+package com.baeldung.thrift;
+
+import org.apache.thrift.transport.TTransportException;
+
+public class Application {
+
+    public static void main(String[] args) throws TTransportException {
+        CrossPlatformServiceServer server = new CrossPlatformServiceServer();
+        server.start();
+    }
+}
--- a/apache-thrift/src/main/java/com/baeldung/thrift/CrossPlatformServiceClient.java
+++ b/apache-thrift/src/main/java/com/baeldung/thrift/CrossPlatformServiceClient.java
@ -0,0 +1,41 @@
+package com.baeldung.thrift;
+
+import com.baeldung.thrift.impl.CrossPlatformService;
+
+import org.apache.thrift.TException;
+import org.apache.thrift.protocol.TBinaryProtocol;
+import org.apache.thrift.protocol.TProtocol;
+import org.apache.thrift.transport.TSocket;
+import org.apache.thrift.transport.TTransport;
+import org.apache.thrift.transport.TTransportException;
+
+public class CrossPlatformServiceClient {
+
+    public boolean ping() {
+        try {
+            TTransport transport;
+
+            transport = new TSocket("localhost", 9090);
+            transport.open();
+
+            TProtocol protocol = new TBinaryProtocol(transport);
+            CrossPlatformService.Client client = new CrossPlatformService.Client(protocol);
+
+            System.out.print("Calling remote method...");
+
+            boolean result = client.ping();
+
+            System.out.println("done.");
+
+            transport.close();
+
+            return result;
+        } catch (TTransportException e) {
+            e.printStackTrace();
+        } catch (TException x) {
+            x.printStackTrace();
+        }
+
+        return false;
+    }
+}
--- a/apache-thrift/src/main/java/com/baeldung/thrift/CrossPlatformServiceImpl.java
+++ b/apache-thrift/src/main/java/com/baeldung/thrift/CrossPlatformServiceImpl.java
@ -0,0 +1,35 @@
+package com.baeldung.thrift;
+
+import com.baeldung.thrift.impl.CrossPlatformResource;
+import com.baeldung.thrift.impl.CrossPlatformService;
+import com.baeldung.thrift.impl.InvalidOperationException;
+
+import org.apache.thrift.TException;
+
+import java.util.Collections;
+import java.util.List;
+
+public class CrossPlatformServiceImpl implements CrossPlatformService.Iface {
+
+    @Override
+    public CrossPlatformResource get(final int id) throws InvalidOperationException, TException {
+        // add some action
+        return new CrossPlatformResource();
+    }
+
+    @Override
+    public void save(final CrossPlatformResource resource) throws InvalidOperationException, TException {
+        // add some action
+    }
+
+    @Override
+    public List<CrossPlatformResource> getList() throws InvalidOperationException, TException {
+        // add some action
+        return Collections.emptyList();
+    }
+
+    @Override
+    public boolean ping() throws InvalidOperationException, TException {
+        return true;
+    }
+}
--- a/apache-thrift/src/main/java/com/baeldung/thrift/CrossPlatformServiceServer.java
+++ b/apache-thrift/src/main/java/com/baeldung/thrift/CrossPlatformServiceServer.java
@ -0,0 +1,36 @@
+package com.baeldung.thrift;
+
+import com.baeldung.thrift.impl.CrossPlatformService;
+
+import org.apache.thrift.server.TServer;
+import org.apache.thrift.server.TSimpleServer;
+import org.apache.thrift.transport.TServerSocket;
+import org.apache.thrift.transport.TServerTransport;
+import org.apache.thrift.transport.TTransportException;
+
+public class CrossPlatformServiceServer {
+
+    private TServer server;
+
+    public void start() throws TTransportException {
+        TServerTransport serverTransport = new TServerSocket(9090);
+        server = new TSimpleServer(new TServer.Args(serverTransport)
+            .processor(new CrossPlatformService.Processor<>(new CrossPlatformServiceImpl())));
+
+        System.out.print("Starting the server... ");
+
+        server.serve();
+
+        System.out.println("done.");
+    }
+
+    public void stop() {
+        if (server != null && server.isServing()) {
+            System.out.print("Stopping the server... ");
+
+            server.stop();
+
+            System.out.println("done.");
+        }
+    }
+}
--- a/apache-thrift/src/main/resources/cross-platform-service.thrift
+++ b/apache-thrift/src/main/resources/cross-platform-service.thrift
@ -0,0 +1,24 @@
+namespace cpp com.baeldung.thrift.impl
+namespace java com.baeldung.thrift.impl
+
+exception InvalidOperationException {
+    1: i32 code,
+    2: string description
+}
+
+struct CrossPlatformResource {
+    1: i32 id,
+    2: string name,
+    3: optional string salutation
+}
+
+service CrossPlatformService {
+
+    CrossPlatformResource get(1:i32 id) throws (1:InvalidOperationException e),
+
+    void save(1:CrossPlatformResource resource) throws (1:InvalidOperationException e),
+
+    list <CrossPlatformResource> getList() throws (1:InvalidOperationException e),
+
+    bool ping() throws (1:InvalidOperationException e)
+}
--- a/apache-thrift/src/test/java/com/baeldung/thrift/CrossPlatformServiceTest.java
+++ b/apache-thrift/src/test/java/com/baeldung/thrift/CrossPlatformServiceTest.java
@ -0,0 +1,40 @@
+package com.baeldung.thrift;
+
+import org.apache.thrift.transport.TTransportException;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class CrossPlatformServiceTest {
+
+    private CrossPlatformServiceServer server = new CrossPlatformServiceServer();
+
+    @Before
+    public void setUp() {
+        new Thread(() -> {
+            try {
+                server.start();
+            } catch (TTransportException e) {
+                e.printStackTrace();
+            }
+        }).start();
+        try {
+            // wait for the server start up
+            Thread.sleep(1000);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @After
+    public void tearDown() {
+        server.stop();
+    }
+
+    @Test
+    public void ping() {
+        CrossPlatformServiceClient client = new CrossPlatformServiceClient();
+        Assert.assertTrue(client.ping());
+    }
+}
--- a/core-java-9/pom.xml
+++ b/core-java-9/pom.xml
@ -57,7 +57,6 @@
                <configuration>
                    <source>1.9</source>
                    <target>1.9</target>
-                    <verbose>true</verbose>
                </configuration>
            </plugin>

@ -72,6 +71,9 @@
    </build>

    <properties>
+        <!-- project build encoding -->
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    
        <!-- logging -->
        <org.slf4j.version>1.7.21</org.slf4j.version>

--- a/core-java-9/src/test/java/com/baeldung/java9/language/collections/ListFactoryMethodsTest.java
+++ b/core-java-9/src/test/java/com/baeldung/java9/language/collections/ListFactoryMethodsTest.java
@ -0,0 +1,61 @@
+package com.baeldung.java9.language.collections;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+public class ListFactoryMethodsTest {
+
+    @Test
+    public void whenListCreated_thenSuccess() {
+        List<String> traditionlList = new ArrayList<String>();
+        traditionlList.add("foo");
+        traditionlList.add("bar");
+        traditionlList.add("baz");
+        List<String> factoryCreatedList = List.of("foo", "bar", "baz");
+        assertEquals(traditionlList, factoryCreatedList);
+    }
+
+    @Test(expected = UnsupportedOperationException.class)
+    public void onElemAdd_ifUnSupportedOpExpnThrown_thenSuccess() {
+        List<String> list = List.of("foo", "bar");
+        list.add("baz");
+    }
+
+    @Test(expected = UnsupportedOperationException.class)
+    public void onElemModify_ifUnSupportedOpExpnThrown_thenSuccess() {
+        List<String> list = List.of("foo", "bar");
+        list.set(0, "baz");
+    }
+
+    @Test(expected = UnsupportedOperationException.class)
+    public void onElemRemove_ifUnSupportedOpExpnThrown_thenSuccess() {
+        List<String> list = List.of("foo", "bar");
+        list.remove("foo");
+    }
+
+    @Test(expected = NullPointerException.class)
+    public void onNullElem_ifNullPtrExpnThrown_thenSuccess() {
+        List.of("foo", "bar", null);
+    }
+
+    @Test
+    public void ifNotArrayList_thenSuccess() {
+        List<String> list = List.of("foo", "bar");
+        assertFalse(list instanceof ArrayList);
+    }
+
+    @Test
+    public void ifListSizeIsOne_thenSuccess() {
+        int[] arr = { 1, 2, 3, 4 };
+        List<int[]> list = List.of(arr);
+        assertEquals(1, list.size());
+        assertArrayEquals(arr, list.get(0));
+    }
+
+}
--- a/core-java-9/src/test/java/com/baeldung/java9/language/collections/MapFactoryMethodsTest.java
+++ b/core-java-9/src/test/java/com/baeldung/java9/language/collections/MapFactoryMethodsTest.java
@ -0,0 +1,62 @@
+package com.baeldung.java9.language.collections;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+public class MapFactoryMethodsTest {
+
+    @Test
+    public void whenMapCreated_thenSuccess() {
+        Map<String, String> traditionlMap = new HashMap<String, String>();
+        traditionlMap.put("foo", "a");
+        traditionlMap.put("bar", "b");
+        traditionlMap.put("baz", "c");
+        Map<String, String> factoryCreatedMap = Map.of("foo", "a", "bar", "b", "baz", "c");
+        assertEquals(traditionlMap, factoryCreatedMap);
+    }
+
+    @Test(expected = UnsupportedOperationException.class)
+    public void onElemAdd_ifUnSupportedOpExpnThrown_thenSuccess() {
+        Map<String, String> map = Map.of("foo", "a", "bar", "b");
+        map.put("baz", "c");
+    }
+
+    @Test(expected = UnsupportedOperationException.class)
+    public void onElemModify_ifUnSupportedOpExpnThrown_thenSuccess() {
+        Map<String, String> map = Map.of("foo", "a", "bar", "b");
+        map.put("foo", "c");
+    }
+
+    @Test(expected = UnsupportedOperationException.class)
+    public void onElemRemove_ifUnSupportedOpExpnThrown_thenSuccess() {
+        Map<String, String> map = Map.of("foo", "a", "bar", "b");
+        map.remove("foo");
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void givenDuplicateKeys_ifIllegalArgExp_thenSuccess() {
+        Map.of("foo", "a", "foo", "b");
+    }
+
+    @Test(expected = NullPointerException.class)
+    public void onNullKey_ifNullPtrExp_thenSuccess() {
+        Map.of("foo", "a", null, "b");
+    }
+
+    @Test(expected = NullPointerException.class)
+    public void onNullValue_ifNullPtrExp_thenSuccess() {
+        Map.of("foo", "a", "bar", null);
+    }
+
+    @Test
+    public void ifNotHashMap_thenSuccess() {
+        Map<String, String> map = Map.of("foo", "a", "bar", "b");
+        assertFalse(map instanceof HashMap);
+    }
+
+}
--- a/core-java-9/src/test/java/com/baeldung/java9/language/collections/SetFactoryMethodsTest.java
+++ b/core-java-9/src/test/java/com/baeldung/java9/language/collections/SetFactoryMethodsTest.java
@ -0,0 +1,60 @@
+package com.baeldung.java9.language.collections;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+public class SetFactoryMethodsTest {
+
+    @Test
+    public void whenSetCreated_thenSuccess() {
+        Set<String> traditionlSet = new HashSet<String>();
+        traditionlSet.add("foo");
+        traditionlSet.add("bar");
+        traditionlSet.add("baz");
+        Set<String> factoryCreatedSet = Set.of("foo", "bar", "baz");
+        assertEquals(traditionlSet, factoryCreatedSet);
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void onDuplicateElem_IfIllegalArgExp_thenSuccess() {
+        Set.of("foo", "bar", "baz", "foo");
+    }
+
+    @Test(expected = UnsupportedOperationException.class)
+    public void onElemAdd_ifUnSupportedOpExpnThrown_thenSuccess() {
+        Set<String> set = Set.of("foo", "bar");
+        set.add("baz");
+    }
+
+    @Test(expected = UnsupportedOperationException.class)
+    public void onElemRemove_ifUnSupportedOpExpnThrown_thenSuccess() {
+        Set<String> set = Set.of("foo", "bar", "baz");
+        set.remove("foo");
+    }
+
+    @Test(expected = NullPointerException.class)
+    public void onNullElem_ifNullPtrExpnThrown_thenSuccess() {
+        Set.of("foo", "bar", null);
+    }
+
+    @Test
+    public void ifNotHashSet_thenSuccess() {
+        Set<String> list = Set.of("foo", "bar");
+        assertFalse(list instanceof HashSet);
+    }
+
+    @Test
+    public void ifSetSizeIsOne_thenSuccess() {
+        int[] arr = { 1, 2, 3, 4 };
+        Set<int[]> set = Set.of(arr);
+        assertEquals(1, set.size());
+        assertArrayEquals(arr, set.iterator().next());
+    }
+
+}
--- a/core-java/README.md
+++ b/core-java/README.md
@ -54,3 +54,6 @@
 - [The Basics of Java Generics](http://www.baeldung.com/java-generics)
 - [The Traveling Salesman Problem in Java](http://www.baeldung.com/java-simulated-annealing-for-traveling-salesman)
 - [How to Create an Executable JAR with Maven](http://www.baeldung.com/executable-jar-with-maven)
+- [Guide to java.util.concurrent.Future](http://www.baeldung.com/java-future)
+- [Guide to java.util.concurrent.BlockingQueue](http://www.baeldung.com/java-blocking-queue)
+- [Guide to CountDownLatch in Java](http://www.baeldung.com/java-countdown-latch)
--- a/core-java/src/test/java/com/baeldung/CharArrayToStringUnitTest.java
+++ b/core-java/src/test/java/com/baeldung/CharArrayToStringUnitTest.java
@ -0,0 +1,62 @@
+package com.baeldung;
+
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+public class CharArrayToStringUnitTest {
+
+    @Test
+    public void givenCharArray_whenCallingStringConstructor_shouldConvertToString() {
+        char[] charArray = {'c', 'h', 'a', 'r', 'a', 'c', 't', 'e', 'r'};
+        String result = new String(charArray);
+        String expectedValue = "character";
+        
+        assertEquals(expectedValue, result);
+    }
+    
+    @Test
+    public void givenCharArray_whenCallingStringConstructorWithOffsetAndLength_shouldConvertToString(){
+        char[] charArray = {'c', 'h', 'a', 'r', 'a', 'c', 't', 'e', 'r'};
+        String result = new String(charArray, 4, 3);
+        String expectedValue = "act";
+        
+        assertEquals(expectedValue, result);
+    }
+    
+    @Test
+    public void givenCharArray_whenCallingStringCopyValueOf_shouldConvertToString(){
+        char[] charArray = {'c', 'h', 'a', 'r', 'a', 'c', 't', 'e', 'r'};
+        String result = String.copyValueOf(charArray);
+        String expectedValue = "character";
+        
+        assertEquals(expectedValue, result);
+    }
+    
+    @Test
+    public void givenCharArray_whenCallingStringCopyValueOfWithOffsetAndLength_shouldConvertToString(){
+        char[] charArray = {'c', 'h', 'a', 'r', 'a', 'c', 't', 'e', 'r'};
+        String result = String.copyValueOf(charArray, 0, 4);
+        String expectedValue = "char";
+        
+        assertEquals(expectedValue, result);
+    }
+    
+    @Test
+    public void givenCharArray_whenCallingStringValueOf_shouldConvertToString(){
+        char[] charArray = {'c', 'h', 'a', 'r', 'a', 'c', 't', 'e', 'r'};
+        String result = String.valueOf(charArray);
+        String expectedValue = "character";
+        
+        assertEquals(expectedValue, result);
+    }
+    
+    @Test
+    public void givenCharArray_whenCallingStringValueOfWithOffsetAndLength_shouldConvertToString(){
+        char[] charArray = {'c', 'h', 'a', 'r', 'a', 'c', 't', 'e', 'r'};
+        String result = String.valueOf(charArray, 3, 4);
+        String expectedValue = "ract";
+        
+        assertEquals(expectedValue, result);
+    }
+}
--- a/core-java/src/test/java/com/baeldung/StringToCharArrayUnitTest.java
+++ b/core-java/src/test/java/com/baeldung/StringToCharArrayUnitTest.java
@ -0,0 +1,20 @@
+package com.baeldung;
+
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+public class StringToCharArrayUnitTest {
+
+@Test
+public void givenString_whenCallingStringToCharArray_shouldConvertToCharArray() {
+    String givenString = "characters";
+
+    char[] result = givenString.toCharArray();
+
+    char[] expectedCharArray = { 'c', 'h', 'a', 'r', 'a', 'c', 't', 'e', 'r', 's' };
+
+    assertArrayEquals(expectedCharArray, result);
+}
+
+}
--- a/core-java/src/test/java/com/baeldung/concurrent/priorityblockingqueue/PriorityBlockingQueueUnitTest.java
+++ b/core-java/src/test/java/com/baeldung/concurrent/priorityblockingqueue/PriorityBlockingQueueUnitTest.java
@ -0,0 +1,51 @@
+package com.baeldung.concurrent.priorityblockingqueue;
+
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.concurrent.PriorityBlockingQueue;
+import java.util.concurrent.TimeUnit;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.util.Lists.newArrayList;
+
+public class PriorityBlockingQueueUnitTest {
+
+    @Test
+    public void givenUnorderedValues_whenPolling_thenShouldOrderQueue() throws InterruptedException {
+        PriorityBlockingQueue<Integer> queue = new PriorityBlockingQueue<>();
+        ArrayList<Integer> polledElements = new ArrayList<>();
+
+        queue.add(1);
+        queue.add(5);
+        queue.add(2);
+        queue.add(3);
+        queue.add(4);
+
+        queue.drainTo(polledElements);
+
+        assertThat(polledElements).containsExactly(1, 2, 3, 4, 5);
+    }
+
+    @Test
+    public void whenPollingEmptyQueue_thenShouldBlockThread() throws InterruptedException {
+        PriorityBlockingQueue<Integer> queue = new PriorityBlockingQueue<>();
+
+        final Thread thread = new Thread(() -> {
+          System.out.println("Polling...");
+          while (true) {
+            try {
+              Integer poll = queue.take();
+              System.out.println("Polled: " + poll);
+            } catch (InterruptedException e) {}
+          }
+        });
+        thread.start();
+
+        Thread.sleep(TimeUnit.SECONDS.toMillis(5));
+        System.out.println("Adding to queue");
+
+        queue.addAll(newArrayList(1, 5, 6, 1, 2, 6, 7));
+        Thread.sleep(TimeUnit.SECONDS.toMillis(1));
+    }
+}
--- a/core-java/src/test/java/org/baeldung/java/streams/ThreadPoolInParallelStreamTest.java
+++ b/core-java/src/test/java/org/baeldung/java/streams/ThreadPoolInParallelStreamTest.java
@ -0,0 +1,41 @@
+package org.baeldung.java.streams;
+
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ForkJoinPool;
+import java.util.stream.Collectors;
+import java.util.stream.LongStream;
+import java.util.stream.Stream;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class ThreadPoolInParallelStreamTest {
+    
+    @Test
+    public void giveRangeOfLongs_whenSummedInParallel_shouldBeEqualToExpectedTotal() 
+      throws InterruptedException, ExecutionException {
+        long firstNum = 1;
+        long lastNum = 1_000_000;
+
+        List<Long> aList = LongStream.rangeClosed(firstNum, lastNum).boxed()
+          .collect(Collectors.toList());
+
+        ForkJoinPool customThreadPool = new ForkJoinPool(4);
+        long actualTotal = customThreadPool.submit(() -> aList.parallelStream()
+          .reduce(0L, Long::sum)).get();
+        
+        assertEquals((lastNum + firstNum) * lastNum / 2, actualTotal);
+    }
+    
+    @Test
+    public void givenList_whenCallingParallelStream_shouldBeParallelStream(){
+        List<Long> aList = new ArrayList<>();
+        Stream<Long> parallelStream = aList.parallelStream();
+        
+        assertTrue(parallelStream.isParallel());
+    }
+}
--- a/guava/src/test/java/org/baeldung/guava/CustomEvent.java
+++ b/guava/src/test/java/org/baeldung/guava/CustomEvent.java
@ -0,0 +1,18 @@
+package org.baeldung.guava;
+
+
+public class CustomEvent {
+    private String action;
+
+    public CustomEvent(String action) {
+        this.action = action;
+    }
+
+    public String getAction() {
+        return action;
+    }
+
+    public void setAction(String action) {
+        this.action = action;
+    }
+}
--- a/guava/src/test/java/org/baeldung/guava/EventBusWrapper.java
+++ b/guava/src/test/java/org/baeldung/guava/EventBusWrapper.java
@ -0,0 +1,22 @@
+package org.baeldung.guava;
+
+import com.google.common.eventbus.EventBus;
+
+class EventBusWrapper {
+
+    private static EventBus eventBus = new EventBus();
+
+    static void register(Object object){
+        eventBus.register(object);
+    }
+
+    static void unregister(Object object){
+        eventBus.unregister(object);
+    }
+
+    static void post(Object object){
+        eventBus.post(object);
+    }
+
+
+}
--- a/guava/src/test/java/org/baeldung/guava/EventListener.java
+++ b/guava/src/test/java/org/baeldung/guava/EventListener.java
@ -0,0 +1,33 @@
+package org.baeldung.guava;
+import com.google.common.eventbus.Subscribe;
+
+public class EventListener {
+
+    private static int eventsHandled;
+
+    /**
+     * Handles events of type String     *
+     */
+    @Subscribe
+    public void stringEvent(String event){
+        System.out.println("do event ["+event+"]");
+        eventsHandled++;
+    }
+
+    /**
+     * Handles events of type CustomEvent
+     */
+    @Subscribe
+    public void someEvent(CustomEvent customEvent){
+        System.out.println("do event ["+ customEvent.getAction()+"]");
+        eventsHandled++;
+    }
+
+    public int getEventsHandled() {
+        return eventsHandled;
+    }
+
+    public void resetEventsHandled(){
+        eventsHandled = 0;
+    }
+}
--- a/guava/src/test/java/org/baeldung/guava/GuavaEventBusTest.java
+++ b/guava/src/test/java/org/baeldung/guava/GuavaEventBusTest.java
@ -0,0 +1,42 @@
+package org.baeldung.guava;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class GuavaEventBusTest {
+
+    private EventListener listener;
+
+    @Before
+    public void setUp() throws Exception {
+        listener = new EventListener();
+        EventBusWrapper.register(listener);
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        EventBusWrapper.unregister(listener);
+    }
+
+    @Test
+    public void givenStringEvent_whenEventHandled_thenSuccess() throws Exception {
+        listener.resetEventsHandled();
+
+        EventBusWrapper.post("String Event");
+        assertEquals(1, listener.getEventsHandled());
+
+    }
+
+    @Test
+    public void givenCustomEvent_whenEventHandled_thenSuccess() throws Exception {
+        listener.resetEventsHandled();
+
+        CustomEvent customEvent = new CustomEvent("Custom Event");
+        EventBusWrapper.post(customEvent);
+
+        assertEquals(1, listener.getEventsHandled());
+    }
+}
--- a/guava/src/test/java/org/baeldung/guava/GuavaOrderingTest.java
+++ b/guava/src/test/java/org/baeldung/guava/GuavaOrderingTest.java
@ -0,0 +1,91 @@
+package org.baeldung.guava;
+
+import com.google.common.base.Function;
+import com.google.common.collect.Ordering;
+import com.google.common.primitives.Ints;
+import org.junit.Test;
+
+import java.util.Arrays;
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+
+public class GuavaOrderingTest {
+    @Test
+    public void givenListOfIntegers_whenCreateNaturalOrderOrdering_shouldSortProperly() {
+        //given
+        List<Integer> integers = Arrays.asList(3, 2, 1);
+
+        //when
+        integers.sort(Ordering.natural());
+
+        //then
+        assertEquals(Arrays.asList(1, 2, 3), integers);
+    }
+
+    @Test
+    public void givenListOfPersonObject_whenSortedUsingCustomOrdering_shouldSortProperly() {
+        //given
+        List<Person> persons = Arrays.asList(new Person("Michael", 10), new Person("Alice", 3));
+        Ordering<Person> orderingByAge = new Ordering<Person>() {
+            @Override
+            public int compare(Person p1, Person p2) {
+                return Ints.compare(p1.age, p2.age);
+            }
+        };
+
+        //when
+        persons.sort(orderingByAge);
+
+        //then
+        assertEquals(Arrays.asList(new Person("Alice", 3), new Person("Michael", 10)), persons);
+    }
+
+    @Test
+    public void givenListOfPersonObject_whenSortedUsingChainedOrdering_shouldSortPropely() {
+        //given
+        List<Person> persons = Arrays.asList(new Person("Michael", 10), new Person("Alice", 3), new Person("Thomas", null));
+        Ordering<Person> ordering = Ordering.natural().nullsFirst().onResultOf(new Function<Person, Comparable>() {
+            @Override
+            public Comparable apply(Person person) {
+                return person.age;
+            }
+        });
+
+        //when
+        persons.sort(ordering);
+
+        //then
+        assertEquals(Arrays.asList(new Person("Thomas", null), new Person("Alice", 3), new Person("Michael", 10)), persons);
+    }
+
+
+    class Person {
+        private final String name;
+        private final Integer age;
+
+        private Person(String name, Integer age) {
+            this.name = name;
+            this.age = age;
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (this == o) return true;
+            if (o == null || getClass() != o.getClass()) return false;
+
+            Person person = (Person) o;
+
+            if (name != null ? !name.equals(person.name) : person.name != null) return false;
+            return age != null ? age.equals(person.age) : person.age == null;
+
+        }
+
+        @Override
+        public int hashCode() {
+            int result = name != null ? name.hashCode() : 0;
+            result = 31 * result + (age != null ? age.hashCode() : 0);
+            return result;
+        }
+    }
+}
--- a/javaslang/src/main/java/com/baeldung/javaslang/exception/handling/JavaTryCatch.java
+++ b/javaslang/src/main/java/com/baeldung/javaslang/exception/handling/JavaTryCatch.java
@ -0,0 +1,21 @@
+package com.baeldung.javaslang.exception.handling;
+
+import com.baeldung.javaslang.exception.handling.client.ClientException;
+import com.baeldung.javaslang.exception.handling.client.HttpClient;
+import com.baeldung.javaslang.exception.handling.client.Response;
+
+public class JavaTryCatch {
+    private HttpClient httpClient;
+
+    public JavaTryCatch(HttpClient httpClient) {
+        this.httpClient = httpClient;
+    }
+
+    public Response getResponse() {
+        try {
+            return httpClient.call();
+        } catch (ClientException e) {
+            return null;
+        }
+    }
+}
--- a/javaslang/src/main/java/com/baeldung/javaslang/exception/handling/JavaslangTry.java
+++ b/javaslang/src/main/java/com/baeldung/javaslang/exception/handling/JavaslangTry.java
@ -0,0 +1,18 @@
+package com.baeldung.javaslang.exception.handling;
+
+
+import com.baeldung.javaslang.exception.handling.client.HttpClient;
+import com.baeldung.javaslang.exception.handling.client.Response;
+import javaslang.control.Try;
+
+public class JavaslangTry {
+    private final HttpClient httpClient;
+
+    public JavaslangTry(HttpClient httpClient) {
+        this.httpClient = httpClient;
+    }
+
+    public Try<Response> getResponse() {
+        return Try.of(httpClient::call);
+    }
+}
--- a/javaslang/src/main/java/com/baeldung/javaslang/exception/handling/client/ClientException.java
+++ b/javaslang/src/main/java/com/baeldung/javaslang/exception/handling/client/ClientException.java
@ -0,0 +1,8 @@
+package com.baeldung.javaslang.exception.handling.client;
+
+
+public class ClientException extends Exception {
+    public ClientException(String message) {
+        super(message);
+    }
+}
--- a/javaslang/src/main/java/com/baeldung/javaslang/exception/handling/client/HttpClient.java
+++ b/javaslang/src/main/java/com/baeldung/javaslang/exception/handling/client/HttpClient.java
@ -0,0 +1,6 @@
+package com.baeldung.javaslang.exception.handling.client;
+
+
+public interface HttpClient {
+    Response call() throws ClientException;
+}
--- a/javaslang/src/main/java/com/baeldung/javaslang/exception/handling/client/Response.java
+++ b/javaslang/src/main/java/com/baeldung/javaslang/exception/handling/client/Response.java
@ -0,0 +1,9 @@
+package com.baeldung.javaslang.exception.handling.client;
+
+public class Response {
+    public final String id;
+
+    public Response(String id) {
+        this.id = id;
+    }
+}
--- a/javaslang/src/test/java/com/baeldung/javaslang/exception/handling/JavaslangTryTest.java
+++ b/javaslang/src/test/java/com/baeldung/javaslang/exception/handling/JavaslangTryTest.java
@ -0,0 +1,115 @@
+package com.baeldung.javaslang.exception.handling;
+
+import com.baeldung.javaslang.exception.handling.client.ClientException;
+import com.baeldung.javaslang.exception.handling.client.HttpClient;
+import com.baeldung.javaslang.exception.handling.client.Response;
+import javaslang.collection.Stream;
+import javaslang.control.Option;
+import javaslang.control.Try;
+import org.junit.Test;
+
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+import static javaslang.API.Case;
+import static javaslang.API.Match;
+import static javaslang.Predicates.instanceOf;
+import static org.junit.Assert.*;
+
+public class JavaslangTryTest {
+
+    @Test
+    public void givenHttpClient_whenMakeACall_shouldReturnSuccess() {
+        //given
+        Integer defaultChainedResult = 1;
+        String id = "a";
+        HttpClient httpClient = () -> new Response(id);
+
+        //when
+        Try<Response> response = new JavaslangTry(httpClient).getResponse();
+        Integer chainedResult = response
+                .map(this::actionThatTakesResponse)
+                .getOrElse(defaultChainedResult);
+        Stream<String> stream = response.toStream().map(it -> it.id);
+
+        //then
+        assertTrue(!stream.isEmpty());
+        assertTrue(response.isSuccess());
+        response.onSuccess(r -> assertEquals(id, r.id));
+        response.andThen(r -> assertEquals(id, r.id));
+        assertNotEquals(defaultChainedResult, chainedResult);
+    }
+
+    @Test
+    public void givenHttpClientFailure_whenMakeACall_shouldReturnFailure() {
+        //given
+        Integer defaultChainedResult = 1;
+        HttpClient httpClient = () -> {
+            throw new ClientException("problem");
+        };
+
+        //when
+        Try<Response> response = new JavaslangTry(httpClient).getResponse();
+        Integer chainedResult = response
+                .map(this::actionThatTakesResponse)
+                .getOrElse(defaultChainedResult);
+        Option<Response> optionalResponse = response.toOption();
+
+        //then
+        assertTrue(optionalResponse.isEmpty());
+        assertTrue(response.isFailure());
+        response.onFailure(ex -> assertTrue(ex instanceof ClientException));
+        assertEquals(defaultChainedResult, chainedResult);
+    }
+
+    @Test
+    public void givenHttpClientThatFailure_whenMakeACall_shouldReturnFailureAndNotRecover() {
+        //given
+        Response defaultResponse = new Response("b");
+        HttpClient httpClient = () -> {
+            throw new RuntimeException("critical problem");
+        };
+
+        //when
+        Try<Response> recovered = new JavaslangTry(httpClient).getResponse()
+                .recover(r -> Match(r).of(
+                        Case(instanceOf(ClientException.class), defaultResponse)
+                ));
+
+        //then
+        assertTrue(recovered.isFailure());
+
+//        recovered.getOrElseThrow(throwable -> {
+//            throw new RuntimeException(throwable);
+//        });
+    }
+
+    @Test
+    public void givenHttpClientThatFailure_whenMakeACall_shouldReturnFailureAndRecover() {
+        //given
+        Response defaultResponse = new Response("b");
+        HttpClient httpClient = () -> {
+            throw new ClientException("non critical problem");
+        };
+
+        //when
+        Try<Response> recovered = new JavaslangTry(httpClient).getResponse()
+                .recover(r -> Match(r).of(
+                        Case(instanceOf(ClientException.class), defaultResponse),
+                        Case(instanceOf(IllegalArgumentException.class), defaultResponse)
+                ));
+
+        //then
+        assertTrue(recovered.isSuccess());
+    }
+
+
+    public int actionThatTakesResponse(Response response) {
+        return response.id.hashCode();
+    }
+
+    public int actionThatTakesTryResponse(Try<Response> response, int defaultTransformation){
+        return response.transform(responses -> response.map(it -> it.id.hashCode()).getOrElse(defaultTransformation));
+    }
+
+}
--- a/kotlin/src/test/kotlin/com/baeldung/kotlin/KotlinScalaInteroperabilityTest.kt
+++ b/kotlin/src/test/kotlin/com/baeldung/kotlin/KotlinScalaInteroperabilityTest.kt
@ -5,7 +5,7 @@ import org.junit.Test
 import kotlin.test.assertEquals


-class KotlinScalaInteroperabilityTest {
+class KotlinJavaInteroperabilityTest {

    @Test
    fun givenLowercaseString_whenExecuteMethodFromJavaStringUtils_shouldReturnStringUppercase() {
--- a/pom.xml
+++ b/pom.xml
@ -20,6 +20,7 @@
        <module>apache-cxf</module>
        <module>apache-fop</module>
        <module>apache-poi</module>
+        <module>apache-thrift</module>
        <module>aspectj</module>
        <module>assertj</module>
        <module>autovalue</module>
@ -93,6 +94,7 @@
        <module>rest-assured</module>
        <module>rest-testing</module>
        <module>resteasy</module>
+        <module>rxjava</module>

        <module>selenium-junit-testng</module>
        <module>solr-fulltext-search</module>
@ -138,7 +140,7 @@
        <module>spring-mvc-web-vs-initializer</module>
        <module>spring-mvc-xml</module>
        <module>spring-mvc-simple</module>
-        <module>spring-openid</module>
+        <module>spring-security-openid</module>
        <module>spring-protobuf</module>
        <module>spring-quartz</module>
        <module>spring-rest-angular</module>
--- a/rxjava/src/main/java/com/baelding/rxjava/ColdObservableBackpressure.java
+++ b/rxjava/src/main/java/com/baelding/rxjava/ColdObservableBackpressure.java
@ -1,44 +1,16 @@
 package com.baelding.rxjava;

-
 import rx.Observable;
-import rx.Subscriber;
 import rx.schedulers.Schedulers;

-public class ColdObservableBackPressure {
+public class ColdObservableBackpressure {
    public static void main(String[] args) throws InterruptedException {
+
        Observable.range(1, 1_000_000)
                .observeOn(Schedulers.computation())
                .subscribe(ComputeFunction::compute);

        Thread.sleep(10_000);
-
-
-//        Observable.range(1, 1_000_000) //implementation of reactive pull backpressure on cold observable
-//                .subscribe(new Subscriber<Integer>() {
-//                    @Override
-//                    public void onStart() {
-//                        request(1);
-//                    }
-//
-//                    public void onNext(Integer v) {
-//                        compute(v);
-//
-//                        request(1);
-//                    }
-//
-//                    @Override
-//                    public void onError(Throwable ex) {
-//                        ex.printStackTrace();
-//                    }
-//
-//                    @Override
-//                    public void onCompleted() {
-//                        System.out.println("Done!");
-//                    }
-//                });
-
    }

-
 }
--- a/rxjava/src/main/java/com/baelding/rxjava/ComputeFunction.java
+++ b/rxjava/src/main/java/com/baelding/rxjava/ComputeFunction.java
@ -1,6 +1,5 @@
 package com.baelding.rxjava;

-
 import rx.Observable;

 import java.util.List;
@ -33,7 +32,6 @@ public class ComputeFunction {
        }
    }

-
    public static void compute(Long v) {
        try {
            System.out.println("compute integer v: " + v);
--- a/rxjava/src/main/java/com/baelding/rxjava/HotObservableBackpressureBatching.java
+++ b/rxjava/src/main/java/com/baelding/rxjava/HotObservableBackpressureBatching.java
@ -3,14 +3,11 @@ package com.baelding.rxjava;
 import rx.schedulers.Schedulers;
 import rx.subjects.PublishSubject;

-public class HotObservableBackPressureBatching {
+public class HotObservableBackpressureBatching {
    public static void main(String[] args) throws InterruptedException {
        PublishSubject<Integer> source = PublishSubject.<Integer>create();

-        source.window(500)
-                .observeOn(Schedulers.computation())
-                .subscribe(ComputeFunction::compute, Throwable::printStackTrace);
-
+        source.window(500).observeOn(Schedulers.computation()).subscribe(ComputeFunction::compute, Throwable::printStackTrace);

        for (int i = 0; i < 1_000_000; i++) {
            source.onNext(i);
--- a/rxjava/src/main/java/com/baelding/rxjava/HotObservableBackpressureBuffering.java
+++ b/rxjava/src/main/java/com/baelding/rxjava/HotObservableBackpressureBuffering.java
@ -3,16 +3,11 @@ package com.baelding.rxjava;
 import rx.schedulers.Schedulers;
 import rx.subjects.PublishSubject;

-
-public class HotObservableBackPressureBuffering {
+public class HotObservableBackpressureBuffering {
    public static void main(String[] args) throws InterruptedException {
        PublishSubject<Integer> source = PublishSubject.<Integer>create();

-        source
-                .buffer(1024)
-                .observeOn(Schedulers.computation())
-                .subscribe(ComputeFunction::compute, Throwable::printStackTrace);
-
+        source.buffer(1024).observeOn(Schedulers.computation()).subscribe(ComputeFunction::compute, Throwable::printStackTrace);

        for (int i = 0; i < 1_000_000; i++) {
            source.onNext(i);
--- a/rxjava/src/main/java/com/baelding/rxjava/HotObservableBackpressureSkipping.java
+++ b/rxjava/src/main/java/com/baelding/rxjava/HotObservableBackpressureSkipping.java
@ -5,15 +5,13 @@ import rx.subjects.PublishSubject;

 import java.util.concurrent.TimeUnit;

-public class HotObservableBackPressureSkipping {
+public class HotObservableBackpressureSkipping {
    public static void main(String[] args) throws InterruptedException {
        PublishSubject<Integer> source = PublishSubject.<Integer>create();

        source.sample(100, TimeUnit.MILLISECONDS)
-//                .throttleFirst(100, TimeUnit.MILLISECONDS)
-                .observeOn(Schedulers.computation())
-                .subscribe(ComputeFunction::compute, Throwable::printStackTrace);
-
+            //                .throttleFirst(100, TimeUnit.MILLISECONDS)
+            .observeOn(Schedulers.computation()).subscribe(ComputeFunction::compute, Throwable::printStackTrace);

        for (int i = 0; i < 1_000_000; i++) {
            source.onNext(i);
--- a/rxjava/src/main/java/com/baelding/rxjava/HotObservableOnBackPressure.java
+++ b/rxjava/src/main/java/com/baelding/rxjava/HotObservableOnBackPressure.java
@ -1,28 +0,0 @@
-package com.baelding.rxjava;
-
-
-import rx.BackpressureOverflow;
-import rx.Observable;
-import rx.schedulers.Schedulers;
-
-public class HotObservableOnBackPressure {
-    public static void main(String[] args) throws InterruptedException {
-        Observable.range(1, 1_000_000)
-                .onBackpressureBuffer(16, () -> {
-                        },
-                        BackpressureOverflow.ON_OVERFLOW_DROP_OLDEST)
-                .observeOn(Schedulers.computation())
-                .subscribe(e -> {
-                }, Throwable::printStackTrace);
-
-
-        Observable.range(1, 1_000_000)
-                .onBackpressureDrop()
-                .observeOn(Schedulers.computation())
-                .doOnNext(ComputeFunction::compute)
-                .subscribe(v -> {
-                }, Throwable::printStackTrace);
-        Thread.sleep(10_000);
-
-    }
-}
--- a/rxjava/src/main/java/com/baelding/rxjava/HotObservableWithoutBackpressure.java
+++ b/rxjava/src/main/java/com/baelding/rxjava/HotObservableWithoutBackpressure.java
@ -4,7 +4,7 @@ package com.baelding.rxjava;
 import rx.schedulers.Schedulers;
 import rx.subjects.PublishSubject;

-public class HotObservableWithoutBackPressure {
+public class HotObservableWithoutBackpressure {
    public static void main(String[] args) throws InterruptedException {
        PublishSubject<Integer> source = PublishSubject.<Integer>create();

--- a/spark-java/README.md
+++ b/spark-java/README.md
@ -0,0 +1,6 @@
+=========
+
+## Spark Java Framework Tutorial Sample Project
+
+### Relevant Articles
+- [Intro to Spark Java Framework](http://www.baeldung.com/spark-framework-rest-api)
--- a/spring-core/README.md
+++ b/spring-core/README.md
@ -3,3 +3,4 @@
 - [Exploring the Spring BeanFactory API](http://www.baeldung.com/spring-beanfactory)
 - [How to use the Spring FactoryBean?](http://www.baeldung.com/spring-factorybean)
 - [Constructor Dependency Injection in Spring](http://www.baeldung.com/constructor-injection-in-spring)
+- [Constructor Injection in Spring with Lombok](http://inprogress.baeldung.com/constructor-injection-in-spring-with-lombok)
--- a/spring-core/pom.xml
+++ b/spring-core/pom.xml
@ -52,6 +52,11 @@
            <artifactId>guava</artifactId>
            <version>${guava.version}</version>
        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>${lombok.version}</version>
+        </dependency>
    </dependencies>

    <build>
@ -131,6 +136,7 @@
        <junit.version>4.12</junit.version>
        <guava.version>20.0</guava.version>
        <maven-war-plugin.version>2.6</maven-war-plugin.version>
+        <lombok.version>1.16.12</lombok.version>
    </properties>

    <repositories>
--- a/spring-core/src/main/java/com/baeldung/lombok/ApologizeService.java
+++ b/spring-core/src/main/java/com/baeldung/lombok/ApologizeService.java
@ -0,0 +1,22 @@
+package com.baeldung.lombok;
+
+import lombok.AllArgsConstructor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+@AllArgsConstructor
+public class ApologizeService {
+
+    private final Translator translator;
+    private final String message;
+
+    @Autowired
+    public ApologizeService(Translator translator) {
+        this(translator, "sorry");
+    }
+
+    public String apologize() {
+        return translator.translate(message);
+    }
+}
--- a/spring-core/src/main/java/com/baeldung/lombok/FarewellService.java
+++ b/spring-core/src/main/java/com/baeldung/lombok/FarewellService.java
@ -0,0 +1,18 @@
+package com.baeldung.lombok;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class FarewellService {
+
+    private final Translator translator;
+
+    public FarewellService(Translator translator) {
+        this.translator = translator;
+    }
+
+    public String farewell() {
+        return translator.translate("bye");
+    }
+}
--- a/spring-core/src/main/java/com/baeldung/lombok/GreetingService.java
+++ b/spring-core/src/main/java/com/baeldung/lombok/GreetingService.java
@ -0,0 +1,15 @@
+package com.baeldung.lombok;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class GreetingService {
+
+    @Autowired
+    private Translator translator;
+
+    public String greet() {
+        return translator.translate("hello");
+    }
+}
--- a/spring-core/src/main/java/com/baeldung/lombok/ThankingService.java
+++ b/spring-core/src/main/java/com/baeldung/lombok/ThankingService.java
@ -0,0 +1,15 @@
+package com.baeldung.lombok;
+
+import lombok.AllArgsConstructor;
+import org.springframework.stereotype.Component;
+
+@Component
+@AllArgsConstructor
+public class ThankingService {
+
+    private final Translator translator;
+
+    public String thank() {
+        return translator.translate("thank you");
+    }
+}
--- a/spring-core/src/main/java/com/baeldung/lombok/Translator.java
+++ b/spring-core/src/main/java/com/baeldung/lombok/Translator.java
@ -0,0 +1,5 @@
+package com.baeldung.lombok;
+
+public interface Translator {
+    String translate(String input);
+}
--- a/spring-core/src/test/java/com/baeldung/lombok/ApologizeServiceAutowiringTest.java
+++ b/spring-core/src/test/java/com/baeldung/lombok/ApologizeServiceAutowiringTest.java
@ -0,0 +1,33 @@
+package com.baeldung.lombok;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Mockito.when;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(
+  loader = AnnotationConfigContextLoader.class,
+  classes = TestConfig.class)
+public class ApologizeServiceAutowiringTest {
+
+    private final static String TRANSLATED = "TRANSLATED";
+
+    @Autowired
+    private ApologizeService apologizeService;
+
+    @Autowired
+    private Translator translator;
+
+    @Test
+    public void apologizeWithTranslatedMessage() {
+        when(translator.translate("sorry")).thenReturn(TRANSLATED);
+        assertEquals(TRANSLATED, apologizeService.apologize());
+    }
+
+}
--- a/spring-core/src/test/java/com/baeldung/lombok/ApologizeServiceTest.java
+++ b/spring-core/src/test/java/com/baeldung/lombok/ApologizeServiceTest.java
@ -0,0 +1,21 @@
+package com.baeldung.lombok;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+public class ApologizeServiceTest {
+
+    private final static String MESSAGE = "MESSAGE";
+    private final static String TRANSLATED = "TRANSLATED";
+
+    @Test
+    public void apologizeWithCustomTranslatedMessage() {
+        Translator translator = mock(Translator.class);
+        ApologizeService apologizeService = new ApologizeService(translator, MESSAGE);
+        when(translator.translate(MESSAGE)).thenReturn(TRANSLATED);
+        assertEquals(TRANSLATED, apologizeService.apologize());
+    }
+}
--- a/spring-core/src/test/java/com/baeldung/lombok/FarewellAutowiringTest.java
+++ b/spring-core/src/test/java/com/baeldung/lombok/FarewellAutowiringTest.java
@ -0,0 +1,31 @@
+package com.baeldung.lombok;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Mockito.when;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(
+  loader = AnnotationConfigContextLoader.class,
+  classes = TestConfig.class)
+public class FarewellAutowiringTest {
+
+    @Autowired
+    private FarewellService farewellService;
+
+    @Autowired
+    private Translator translator;
+
+    @Test
+    public void sayByeWithTranslatedMessage() {
+        String translated = "translated";
+        when(translator.translate("bye")).thenReturn(translated);
+        assertEquals(translated, farewellService.farewell());
+    }
+}
--- a/spring-core/src/test/java/com/baeldung/lombok/FarewellServiceTest.java
+++ b/spring-core/src/test/java/com/baeldung/lombok/FarewellServiceTest.java
@ -0,0 +1,20 @@
+package com.baeldung.lombok;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+public class FarewellServiceTest {
+
+    private final static String TRANSLATED = "TRANSLATED";
+
+    @Test
+    public void sayByeWithTranslatedMessage() {
+        Translator translator = mock(Translator.class);
+        when(translator.translate("bye")).thenReturn(TRANSLATED);
+        FarewellService farewellService = new FarewellService(translator);
+        assertEquals(TRANSLATED, farewellService.farewell());
+    }
+}
--- a/spring-core/src/test/java/com/baeldung/lombok/GreetingServiceTest.java
+++ b/spring-core/src/test/java/com/baeldung/lombok/GreetingServiceTest.java
@ -0,0 +1,37 @@
+package com.baeldung.lombok;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Mockito.when;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(
+  loader = AnnotationConfigContextLoader.class,
+  classes = TestConfig.class)
+public class GreetingServiceTest {
+
+    @Autowired
+    private GreetingService greetingService;
+
+    @Autowired
+    private Translator translator;
+
+    @Test
+    public void greetWithTranslatedMessage() {
+        String translated = "translated";
+        when(translator.translate("hello")).thenReturn(translated);
+        assertEquals(translated, greetingService.greet());
+    }
+
+    @Test(expected = NullPointerException.class)
+    public void throwWhenInstantiated() {
+        GreetingService greetingService = new GreetingService();
+        greetingService.greet();
+    }
+}
--- a/spring-core/src/test/java/com/baeldung/lombok/TestConfig.java
+++ b/spring-core/src/test/java/com/baeldung/lombok/TestConfig.java
@ -0,0 +1,17 @@
+package com.baeldung.lombok;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+
+import static org.mockito.Mockito.mock;
+
+@Configuration
+@ComponentScan("com.baeldung.lombok")
+class TestConfig {
+
+    @Bean
+    public Translator mockTranslator() {
+        return mock(Translator.class);
+    }
+}
--- a/spring-core/src/test/java/com/baeldung/lombok/ThankingServiceAutowiringTest.java
+++ b/spring-core/src/test/java/com/baeldung/lombok/ThankingServiceAutowiringTest.java
@ -0,0 +1,31 @@
+package com.baeldung.lombok;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Mockito.when;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(
+  loader = AnnotationConfigContextLoader.class,
+  classes = TestConfig.class)
+public class ThankingServiceAutowiringTest {
+
+    @Autowired
+    private ThankingService thankingService;
+
+    @Autowired
+    private Translator translator;
+
+    @Test
+    public void thankWithTranslatedMessage() {
+        String translated = "translated";
+        when(translator.translate("thank you")).thenReturn(translated);
+        assertEquals(translated, thankingService.thank());
+    }
+}
--- a/spring-core/src/test/java/com/baeldung/lombok/ThankingServiceTest.java
+++ b/spring-core/src/test/java/com/baeldung/lombok/ThankingServiceTest.java
@ -0,0 +1,20 @@
+package com.baeldung.lombok;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+public class ThankingServiceTest {
+
+    private final static String TRANSLATED = "TRANSLATED";
+
+    @Test
+    public void thankWithTranslatedMessage() {
+        Translator translator = mock(Translator.class);
+        when(translator.translate("thank you")).thenReturn(TRANSLATED);
+        ThankingService thankingService = new ThankingService(translator);
+        assertEquals(TRANSLATED, thankingService.thank());
+    }
+}
--- a/spring-hibernate4/src/main/java/com/baeldung/hibernate/oneToMany/config/HibernateAnnotationUtil.java
+++ b/spring-hibernate4/src/main/java/com/baeldung/hibernate/oneToMany/config/HibernateAnnotationUtil.java
@ -21,10 +21,8 @@ public class HibernateAnnotationUtil {

            SessionFactory sessionFactory = configuration.buildSessionFactory(serviceRegistry);

-        	
            return sessionFactory;
-        }
-        catch (Throwable ex) {
+        } catch (Throwable ex) {
            System.err.println("Initial SessionFactory creation failed." + ex);
            ex.printStackTrace();
            throw new ExceptionInInitializerError(ex);
@ -32,7 +30,8 @@ public class HibernateAnnotationUtil {
    }

    public static SessionFactory getSessionFactory() {
-		if(sessionFactory == null) sessionFactory = buildSessionFactory();
+        if (sessionFactory == null)
+            sessionFactory = buildSessionFactory();
        return sessionFactory;
    }
 }
--- a/spring-hibernate4/src/main/java/com/baeldung/hibernate/oneToMany/main/HibernateOneToManyAnnotationMain.java
+++ b/spring-hibernate4/src/main/java/com/baeldung/hibernate/oneToMany/main/HibernateOneToManyAnnotationMain.java
@ -21,36 +21,37 @@ public class HibernateOneToManyAnnotationMain {
        Items item1 = new Items("I10", 10, 1, cart);
        Items item2 = new Items("I20", 20, 2, cart);
        Set<Items> itemsSet = new HashSet<Items>();
-		itemsSet.add(item1); itemsSet.add(item2);
+        itemsSet.add(item1);
+        itemsSet.add(item2);

        cart.setItems(itemsSet);
-		cart.setTotal(10*1 + 20*2);
+        cart.setTotal(10 * 1 + 20 * 2);

        SessionFactory sessionFactory = null;
        Session session = null;
        Transaction tx = null;
-		try{
-		//Get Session
+        try {
+            // Get Session
            sessionFactory = HibernateAnnotationUtil.getSessionFactory();
            session = sessionFactory.getCurrentSession();
            System.out.println("Session created");
-		//start transaction
+            // start transaction
            tx = session.beginTransaction();
-		//Save the Model object
+            // Save the Model object
            session.save(cart);
            session.save(item1);
            session.save(item2);
-		//Commit transaction
+            // Commit transaction
            tx.commit();
-		System.out.println("Cart ID="+cart.getId());
-		System.out.println("item1 ID="+item1.getId()+", Foreign Key Cart ID="+item1.getCart().getId());
-		System.out.println("item2 ID="+item2.getId()+", Foreign Key Cart ID="+item1.getCart().getId());
+            System.out.println("Cart ID=" + cart.getId());
+            System.out.println("item1 ID=" + item1.getId() + ", Foreign Key Cart ID=" + item1.getCart().getId());
+            System.out.println("item2 ID=" + item2.getId() + ", Foreign Key Cart ID=" + item1.getCart().getId());

-		}catch(Exception e){
-			System.out.println("Exception occured. "+e.getMessage());
+        } catch (Exception e) {
+            System.out.println("Exception occured. " + e.getMessage());
            e.printStackTrace();
-		}finally{
-			if(!sessionFactory.isClosed()){
+        } finally {
+            if (!sessionFactory.isClosed()) {
                System.out.println("Closing SessionFactory");
                sessionFactory.close();
            }
--- a/spring-hibernate4/src/main/java/com/baeldung/hibernate/oneToMany/model/Cart.java
+++ b/spring-hibernate4/src/main/java/com/baeldung/hibernate/oneToMany/model/Cart.java
@ -11,44 +11,51 @@ import javax.persistence.OneToMany;
 import javax.persistence.Table;

@Entity
-@Table(name="CART")
+@Table(name = "CART")
 public class Cart {

    @Id
-	@GeneratedValue(strategy=GenerationType.IDENTITY)
-	@Column(name="cart_id")
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "cart_id")
    private long id;

-	@Column(name="total")
+    @Column(name = "total")
    private double total;

-	@Column(name="name")
+    @Column(name = "name")
    private String name;

-	@OneToMany(mappedBy="cart")
+    @OneToMany(mappedBy = "cart")
    private Set<Items> items;

    public long getId() {
        return id;
    }
+
    public void setId(long id) {
        this.id = id;
    }
+
    public double getTotal() {
        return total;
    }
+
    public void setTotal(double total) {
        this.total = total;
    }
+
    public String getName() {
        return name;
    }
+
    public void setName(String name) {
        this.name = name;
    }
+
    public Set<Items> getItems() {
        return items;
    }
+
    public void setItems(Set<Items> items) {
        this.items = items;
    }
--- a/spring-hibernate4/src/main/java/com/baeldung/hibernate/oneToMany/model/Items.java
+++ b/spring-hibernate4/src/main/java/com/baeldung/hibernate/oneToMany/model/Items.java
@ -10,63 +10,74 @@ import javax.persistence.ManyToOne;
 import javax.persistence.Table;

@Entity
-@Table(name="ITEMS")
+@Table(name = "ITEMS")
 public class Items {

    @Id
-	@GeneratedValue(strategy=GenerationType.IDENTITY)
-	@Column(name="id")
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id")
    private long id;

-	@Column(name="item_id")
+    @Column(name = "item_id")
    private String itemId;

-	@Column(name="item_total")
+    @Column(name = "item_total")
    private double itemTotal;

-	@Column(name="quantity")
+    @Column(name = "quantity")
    private int quantity;

    @ManyToOne
-	@JoinColumn(name="cart_id", nullable=false)
+    @JoinColumn(name = "cart_id", nullable = false)
    private Cart cart;

-	//Hibernate requires no-args constructor
-	public Items(){}
-	
-	public Items(String itemId, double total, int qty, Cart c){
-		this.itemId=itemId;
-		this.itemTotal=total;
-		this.quantity=qty;
-		this.cart=c;
+    // Hibernate requires no-args constructor
+    public Items() {
    }
+
+    public Items(String itemId, double total, int qty, Cart c) {
+        this.itemId = itemId;
+        this.itemTotal = total;
+        this.quantity = qty;
+        this.cart = c;
+    }
+
    public String getItemId() {
        return itemId;
    }
+
    public void setItemId(String itemId) {
        this.itemId = itemId;
    }
+
    public double getItemTotal() {
        return itemTotal;
    }
+
    public void setItemTotal(double itemTotal) {
        this.itemTotal = itemTotal;
    }
+
    public int getQuantity() {
        return quantity;
    }
+
    public void setQuantity(int quantity) {
        this.quantity = quantity;
    }
+
    public Cart getCart() {
        return cart;
    }
+
    public void setCart(Cart cart) {
        this.cart = cart;
    }
+
    public long getId() {
        return id;
    }
+
    public void setId(long id) {
        this.id = id;
    }
--- a/spring-hibernate4/src/main/resources/hibernate-annotation.cfg.xml
+++ b/spring-hibernate4/src/main/resources/hibernate-annotation.cfg.xml
@ -5,15 +5,15 @@
 <hibernate-configuration>
    <session-factory>
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
-        <property name="hibernate.connection.password">bastard5</property>
-        <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/setup</property>
-        <property name="hibernate.connection.username">root</property>
+        <property name="hibernate.connection.password">mypassword</property>
+        <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/spring_hibernate_one_to_many?createDatabaseIfNotExist=true</property>
+        <property name="hibernate.connection.username">myuser</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
        
        <property name="hibernate.current_session_context_class">thread</property>
        <property name="hibernate.show_sql">true</property>
        
-        <mapping class="com.baeldung.hibernate.model.Cart"/>
-        <mapping class="com.baeldung.hibernate.model.Items"/>
+        <mapping class="com.baeldung.hibernate.oneToMany.model.Cart"/>
+        <mapping class="com.baeldung.hibernate.oneToMany.model.Items"/>
    </session-factory>
 </hibernate-configuration>
--- a/spring-hibernate4/src/test/java/com/baeldung/hibernate/oneToMany/config/HibernateAnnotationUtilTest.java
+++ b/spring-hibernate4/src/test/java/com/baeldung/hibernate/oneToMany/config/HibernateAnnotationUtilTest.java
@ -1,43 +0,0 @@
-
-package com.baeldung.hibernate.oneToMany.config;
-
-import org.hibernate.SessionFactory;
-import org.junit.After;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import static org.junit.Assert.*;
-
-
-public class HibernateAnnotationUtilTest {
-    
-    public HibernateAnnotationUtilTest() {
-    }
-    
-    @BeforeClass
-    public static void setUpClass() {
-    }
-    
-    @AfterClass
-    public static void tearDownClass() {
-    }
-    
-    @Before
-    public void setUp() {
-    }
-    
-    @After
-    public void tearDown() {
-    }
-    
-    @Test
-    public void testGetSessionFactory() {
-        System.out.println("getSessionFactory");
-        SessionFactory expResult = null;
-        SessionFactory result = HibernateAnnotationUtil.getSessionFactory();
-        assertEquals(expResult, result);
-        fail("The test failed.");
-    }
-    
-}
--- a/spring-hibernate4/src/test/java/com/baeldung/hibernate/oneToMany/main/HibernateOneToManyAnnotationMainTest.java
+++ b/spring-hibernate4/src/test/java/com/baeldung/hibernate/oneToMany/main/HibernateOneToManyAnnotationMainTest.java
@ -1,40 +1,97 @@

 package com.baeldung.hibernate.oneToMany.main;

-import org.junit.After;
-import org.junit.AfterClass;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
+import org.hibernate.cfg.Configuration;
+import org.hibernate.dialect.HSQLDialect;
+import org.hibernate.service.ServiceRegistry;
+import org.junit.Assert;
 import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Test;
-import static org.junit.Assert.*;

+import com.baeldung.hibernate.oneToMany.model.Cart;
+import com.baeldung.hibernate.oneToMany.model.Items;

+//@RunWith(SpringJUnit4ClassRunner.class)
 public class HibernateOneToManyAnnotationMainTest {

+    private static SessionFactory sessionFactory;
+
+    private Session session;
+
    public HibernateOneToManyAnnotationMainTest() {
    }

    @BeforeClass
-    public static void setUpClass() {
-    }
-    
-    @AfterClass
-    public static void tearDownClass() {
+    public static void beforeTests() {
+        Configuration configuration = new Configuration().addAnnotatedClass(Cart.class).addAnnotatedClass(Items.class).setProperty("hibernate.dialect", HSQLDialect.class.getName())
+                .setProperty("hibernate.connection.driver_class", org.hsqldb.jdbcDriver.class.getName()).setProperty("hibernate.connection.url", "jdbc:hsqldb:mem:test").setProperty("hibernate.connection.username", "sa")
+                .setProperty("hibernate.connection.password", "").setProperty("hibernate.hbm2ddl.auto", "update");
+        ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();
+        sessionFactory = configuration.buildSessionFactory(serviceRegistry);
    }

    @Before
    public void setUp() {
+        session = sessionFactory.openSession();
+        session.beginTransaction();
+
    }

-    @After
-    public void tearDown() {
-    }
    @Test
-    public void testMain() {
-        System.out.println("main");
-        String[] args = null;
-        HibernateOneToManyAnnotationMain.main(args);
-        fail("The test failed.");
+    public void givenSession_checkIfDatabaseIsEmpty() {
+        Cart cart = (Cart) session.get(Cart.class, new Long(1));
+        assertNull(cart);
+
+    }
+
+    @Test
+    public void testAddItemsToCart() {
+        Cart cart = new Cart();
+        Set<Items> cartItems = new HashSet<>();
+        cartItems = cart.getItems();
+        Assert.assertNull(cartItems);
+        Items item1 = new Items("I10", 10, 1, cart);
+        assertNotNull(item1);
+        Set<Items> itemsSet = new HashSet<Items>();
+        cart.setItems(itemsSet);
+        assertNotNull(cart);
+        System.out.println("Items added to cart");
+
+    }
+
+    @Test
+    public void givenSession_checkIfDatabaseIsPopulated_afterCommit() {
+        Cart cart = new Cart();
+        Set<Items> cartItems = new HashSet<>();
+        cartItems = cart.getItems();
+        Assert.assertNull(cartItems);
+        Items item1 = new Items();
+        item1.setItemId("I10");
+        item1.setItemTotal(10);
+        item1.setQuantity(1);
+        item1.setCart(cart);
+        assertNotNull(item1);
+        Set<Items> itemsSet = new HashSet<Items>();
+        itemsSet.add(item1);
+        assertNotNull(itemsSet);
+        cart.setItems(itemsSet);
+        assertNotNull(cart);
+        session.persist(cart);
+        session.getTransaction().commit();
+        cart = (Cart) session.get(Cart.class, new Long(1));
+        assertNotNull(cart);
+        session.close();
+
    }

 }
--- a/spring-hibernate4/src/test/java/com/baeldung/hibernate/oneToMany/model/CartTest.java
+++ b/spring-hibernate4/src/test/java/com/baeldung/hibernate/oneToMany/model/CartTest.java
@ -1,111 +0,0 @@
-
-package com.baeldung.hibernate.oneToMany.model;
-
-import java.util.Set;
-import org.junit.After;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import static org.junit.Assert.*;
-
-
-public class CartTest {
-    
-    public CartTest() {
-    }
-    
-    @BeforeClass
-    public static void setUpClass() {
-    }
-    
-    @AfterClass
-    public static void tearDownClass() {
-    }
-    
-    @Before
-    public void setUp() {
-    }
-    
-    @After
-    public void tearDown() {
-    }
-    
-    @Test
-    public void testGetId() {
-        System.out.println("getId");
-        Cart instance = new Cart();
-        long expResult = 0L;
-        long result = instance.getId();
-        assertEquals(expResult, result);
-        fail("The test failed.");
-    }
-
-    @Test
-    public void testSetId() {
-        System.out.println("setId");
-        long id = 0L;
-        Cart instance = new Cart();
-        instance.setId(id);
-        fail("The test failed.");
-    }
-
-    @Test
-    public void testGetTotal() {
-        System.out.println("getTotal");
-        Cart instance = new Cart();
-        double expResult = 0.0;
-        double result = instance.getTotal();
-        assertEquals(expResult, result, 0.0);
-        fail("The test failed.");
-    }
-
-    @Test
-    public void testSetTotal() {
-        System.out.println("setTotal");
-        double total = 0.0;
-        Cart instance = new Cart();
-        instance.setTotal(total);
-        fail("The test failed.");
-    }
-
-    @Test
-    public void testGetName() {
-        System.out.println("getName");
-        Cart instance = new Cart();
-        String expResult = "";
-        String result = instance.getName();
-        assertEquals(expResult, result);
-        fail("The test failed");
-    }
-
-    @Test
-    public void testSetName() {
-        System.out.println("setName");
-        String name = "";
-        Cart instance = new Cart();
-        instance.setName(name);
-        fail("The test failed.");
-    }
-
-    @Test
-    public void testGetItems() {
-        System.out.println("getItems");
-        Cart instance = new Cart();
-        Set<Items> expResult = null;
-        Set<Items> result = instance.getItems();
-        assertEquals(expResult, result);
-        fail("The test failed.");
-    }
-
-    @Test
-    public void testSetItems() {
-        System.out.println("setItems");
-        Set<Items> items = null;
-        Cart instance = new Cart();
-        instance.setItems(items);
-        fail("The test case failed");
-    }
-    
-    
-}
--- a/spring-hibernate4/src/test/java/com/baeldung/hibernate/oneToMany/model/ItemsTest.java
+++ b/spring-hibernate4/src/test/java/com/baeldung/hibernate/oneToMany/model/ItemsTest.java
@ -1,129 +0,0 @@
-
-package com.baeldung.hibernate.oneToMany.model;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
-
-import org.junit.After;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-
-public class ItemsTest {
-
-	public ItemsTest() {
-	}
-
-	@BeforeClass
-	public static void setUpClass() {
-	}
-
-	@AfterClass
-	public static void tearDownClass() {
-	}
-
-	@Before
-	public void setUp() {
-	}
-
-	@After
-	public void tearDown() {
-	}
-
-	@Test
-	public void testGetItemId() {
-		System.out.println("getItemId");
-		Items instance = new Items();
-		String expResult = "";
-		String result = instance.getItemId();
-		assertEquals(expResult, result);
-		fail("The test failed.");
-	}
-
-	@Test
-	public void testSetItemId() {
-		System.out.println("setItemId");
-		String itemId = "";
-		Items instance = new Items();
-		instance.setItemId(itemId);
-		fail("The test failed.");
-	}
-
-	@Test
-	public void testGetItemTotal() {
-		System.out.println("getItemTotal");
-		Items instance = new Items();
-		double expResult = 0.0;
-		double result = instance.getItemTotal();
-		assertEquals(expResult, result, 0.0);
-		fail("The test failed.");
-	}
-
-	@Test
-	public void testSetItemTotal() {
-		System.out.println("setItemTotal");
-		double itemTotal = 0.0;
-		Items instance = new Items();
-		instance.setItemTotal(itemTotal);
-		fail("The test failed.");
-	}
-
-	@Test
-	public void testGetQuantity() {
-		System.out.println("getQuantity");
-		Items instance = new Items();
-		int expResult = 0;
-		int result = instance.getQuantity();
-		assertEquals(expResult, result);
-		fail("The test failed.");
-	}
-
-	@Test
-	public void testSetQuantity() {
-		System.out.println("setQuantity");
-		int quantity = 0;
-		Items instance = new Items();
-		instance.setQuantity(quantity);
-		fail("The test failed.");
-	}
-
-	@Test
-	public void testGetCart() {
-		System.out.println("getCart");
-		Items instance = new Items();
-		Cart expResult = null;
-		Cart result = instance.getCart();
-		assertEquals(expResult, result);
-		fail("The test failed.");
-	}
-
-	@Test
-	public void testSetCart() {
-		System.out.println("setCart");
-		Cart cart = null;
-		Items instance = new Items();
-		instance.setCart(cart);
-		fail("The test failed.");
-	}
-
-	@Test
-	public void testGetId() {
-		System.out.println("getId");
-		Items instance = new Items();
-		long expResult = 0L;
-		long result = instance.getId();
-		assertEquals(expResult, result);
-		fail("The test failed.");
-	}
-
-	@Test
-	public void testSetId() {
-		System.out.println("setId");
-		long id = 0L;
-		Items instance = new Items();
-		instance.setId(id);
-		fail("The test failed.");
-	}
-
-}
--- a/spring-mvc-java/pom.xml
+++ b/spring-mvc-java/pom.xml
@ -160,6 +160,28 @@
            <scope>test</scope>
        </dependency>

+        <!-- excel -->
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi</artifactId>
+            <version>${poi.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi-ooxml</artifactId>
+            <version>${poi.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi-ooxml-schemas</artifactId>
+            <version>${poi.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jxls</groupId>
+            <artifactId>jxls-jexcel</artifactId>
+            <version>${jexcel.version}</version>
+        </dependency>	
+		
    </dependencies>

    <build>
@ -370,6 +392,10 @@

        <!-- AspectJ -->
        <aspectj.version>1.8.9</aspectj.version>
+		
+        <!-- excel -->
+        <poi.version>3.16-beta1</poi.version>
+        <jexcel.version>1.0.6</jexcel.version>
    </properties>

 </project>
--- a/spring-mvc-java/src/main/java/com/baeldung/excel/ExcelPOIHelper.java
+++ b/spring-mvc-java/src/main/java/com/baeldung/excel/ExcelPOIHelper.java
@ -0,0 +1,140 @@
+package com.baeldung.excel;
+
+import org.apache.poi.ss.usermodel.Cell;
+import org.apache.poi.ss.usermodel.CellType;
+import org.apache.poi.ss.usermodel.CellStyle;
+import org.apache.poi.ss.usermodel.IndexedColors;
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.ss.usermodel.Workbook;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
+import org.apache.poi.xssf.usermodel.XSSFFont;
+import org.apache.poi.ss.usermodel.DateUtil;
+import org.apache.poi.ss.usermodel.FillPatternType;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.ArrayList;
+import org.springframework.stereotype.Service;
+
+@Service
+public class ExcelPOIHelper {
+
+    public Map<Integer, ArrayList<String>> readExcel(String fileLocation) throws IOException {
+
+        Map<Integer, ArrayList<String>> data = new HashMap<Integer, ArrayList<String>>();
+        FileInputStream file = new FileInputStream(new File(fileLocation));
+        Workbook workbook = new XSSFWorkbook(file);
+        Sheet sheet = workbook.getSheetAt(0);
+        int i = 0;
+        for (Row row : sheet) {
+            data.put(i, new ArrayList<String>());
+            for (Cell cell : row) {
+                switch (cell.getCellTypeEnum()) {
+                case STRING:
+                    data.get(i)
+                        .add(cell.getRichStringCellValue()
+                            .getString());
+                    break;
+                case NUMERIC:
+                    if (DateUtil.isCellDateFormatted(cell)) {
+                        data.get(i)
+                            .add(cell.getDateCellValue() + "");
+                    } else {
+                        data.get(i)
+                            .add(cell.getNumericCellValue() + "");
+                    }
+                    break;
+                case BOOLEAN:
+                    data.get(i)
+                        .add(cell.getBooleanCellValue() + "");
+                    break;
+                case FORMULA:
+                    data.get(i)
+                        .add(cell.getCellFormula() + "");
+                    break;
+                default:
+                    data.get(i)
+                        .add(" ");
+                }
+            }
+            i++;
+        }
+        if (workbook != null){
+            workbook.close();
+        }
+        return data;
+    }
+
+    public void writeExcel() throws IOException {
+        Workbook workbook = new XSSFWorkbook();
+
+        try {
+            Sheet sheet = workbook.createSheet("Persons");
+            sheet.setColumnWidth(0, 6000);
+            sheet.setColumnWidth(1, 4000);
+
+            Row header = sheet.createRow(0);
+
+            CellStyle headerStyle = workbook.createCellStyle();
+
+            headerStyle.setFillForegroundColor(IndexedColors.LIGHT_BLUE.getIndex());
+            headerStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
+
+            XSSFFont font = ((XSSFWorkbook) workbook).createFont();
+            font.setFontName("Arial");
+            font.setFontHeightInPoints((short) 16);
+            font.setBold(true);
+            headerStyle.setFont(font);
+
+            Cell headerCell = header.createCell(0);
+            headerCell.setCellValue("Name");
+            headerCell.setCellStyle(headerStyle);
+
+            headerCell = header.createCell(1);
+            headerCell.setCellValue("Age");
+            headerCell.setCellStyle(headerStyle);
+
+            CellStyle style = workbook.createCellStyle();
+            style.setWrapText(true);
+
+            Row row = sheet.createRow(2);
+            Cell cell = row.createCell(0);
+            cell.setCellValue("John Smith");
+            cell.setCellStyle(style);
+
+            cell = row.createCell(1);
+            cell.setCellValue(20);
+            cell.setCellStyle(style);
+
+            row = sheet.createRow(3);
+            cell = row.createCell(0);
+            cell.setCellValue("Ana Johnson");
+            cell.setCellStyle(style);
+
+            cell = row.createCell(1);
+            cell.setCellValue(30);
+            cell.setCellStyle(style);
+
+            File currDir = new File(".");
+            String path = currDir.getAbsolutePath();
+            String fileLocation = path.substring(0, path.length() - 1) + "temp.xlsx";
+
+            FileOutputStream outputStream = new FileOutputStream(fileLocation);
+            workbook.write(outputStream);
+        } finally {
+            if (workbook != null) {
+                try {
+                    workbook.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+}
--- a/spring-mvc-java/src/main/java/com/baeldung/excel/JExcelHelper.java
+++ b/spring-mvc-java/src/main/java/com/baeldung/excel/JExcelHelper.java
@ -0,0 +1,82 @@
+package com.baeldung.excel;
+
+import jxl.Sheet;
+import jxl.Workbook;
+import jxl.format.Colour;
+import jxl.read.biff.BiffException;
+import jxl.write.*;
+import jxl.write.Number;
+import org.springframework.stereotype.Service;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+@Service
+public class JExcelHelper {
+
+    public Map<Integer, ArrayList<String>> readJExcel(String fileLocation) throws IOException, BiffException {
+        Map<Integer, ArrayList<String>> data = new HashMap<>();
+
+        Workbook workbook = Workbook.getWorkbook(new File(fileLocation));
+        Sheet sheet = workbook.getSheet(0);
+        int rows = sheet.getRows();
+        int columns = sheet.getColumns();
+
+        for (int i = 0; i < rows; i++) {
+            data.put(i, new ArrayList<>());
+            for (int j = 0; j < columns; j++) {
+                data.get(i).add(sheet.getCell(j, i).getContents());
+            }
+        }
+        return data;
+    }
+
+    public void writeJExcel() throws IOException, WriteException {
+        WritableWorkbook workbook = null;
+        try {
+            File currDir = new File(".");
+            String path = currDir.getAbsolutePath();
+            String fileLocation = path.substring(0, path.length() - 1) + "temp.xls";
+
+            workbook = Workbook.createWorkbook(new File(fileLocation));
+
+            WritableSheet sheet = workbook.createSheet("Sheet 1", 0);
+
+            WritableCellFormat headerFormat = new WritableCellFormat();
+            WritableFont font = new WritableFont(WritableFont.ARIAL, 16, WritableFont.BOLD);
+            headerFormat.setFont(font);
+            headerFormat.setBackground(Colour.LIGHT_BLUE);
+            headerFormat.setWrap(true);
+            Label headerLabel = new Label(0, 0, "Name", headerFormat);
+            sheet.setColumnView(0, 60);
+            sheet.addCell(headerLabel);
+
+            headerLabel = new Label(1, 0, "Age", headerFormat);
+            sheet.setColumnView(0, 40);
+            sheet.addCell(headerLabel);
+
+            WritableCellFormat cellFormat = new WritableCellFormat();
+            cellFormat.setWrap(true);
+
+            Label cellLabel = new Label(0, 2, "John Smith", cellFormat);
+            sheet.addCell(cellLabel);
+            Number cellNumber = new Number(1, 2, 20, cellFormat);
+            sheet.addCell(cellNumber);
+
+            cellLabel = new Label(0, 3, "Ana Johnson", cellFormat);
+            sheet.addCell(cellLabel);
+            cellNumber = new Number(1, 3, 30, cellFormat);
+            sheet.addCell(cellNumber);
+
+            workbook.write();
+        } finally {
+            if (workbook != null) {
+                workbook.close();
+            }
+        }
+
+    }
+}
--- a/spring-mvc-java/src/main/java/com/baeldung/spring/web/config/WebConfig.java
+++ b/spring-mvc-java/src/main/java/com/baeldung/spring/web/config/WebConfig.java
@ -21,6 +21,7 @@ import org.springframework.web.servlet.view.JstlView;
 import org.springframework.web.servlet.view.ResourceBundleViewResolver;
 import org.springframework.web.servlet.view.XmlViewResolver;
 import org.springframework.web.util.UrlPathHelper;
+import com.baeldung.excel.*;

@Configuration
@EnableWebMvc
@ -106,4 +107,15 @@ public class WebConfig extends WebMvcConfigurerAdapter {

        configurer.setUrlPathHelper(urlPathHelper);
    }
+
+    @Bean
+    public JExcelHelper jExcelHelper() {
+        return new JExcelHelper();
+    }
+
+    @Bean
+    public ExcelPOIHelper excelPOIHelper() {
+        return new ExcelPOIHelper();
+    }
+
 }
--- a/spring-mvc-java/src/main/java/com/baeldung/web/controller/ExcelController.java
+++ b/spring-mvc-java/src/main/java/com/baeldung/web/controller/ExcelController.java
@ -0,0 +1,105 @@
+package com.baeldung.web.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.multipart.MultipartFile;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import com.baeldung.excel.*;
+import jxl.read.biff.BiffException;
+import java.util.Map;
+import java.util.ArrayList;
+import javax.annotation.Resource;
+import jxl.write.WriteException;
+
+@Controller
+public class ExcelController {
+
+    private String fileLocation;
+
+    @Resource(name = "jExcelHelper")
+    private JExcelHelper jExcelHelper;
+
+    @Resource(name = "excelPOIHelper")
+    private ExcelPOIHelper excelPOIHelper;
+
+    @RequestMapping(method = RequestMethod.GET, value = "/excelProcessing")
+    public String getExcelProcessingPage() {
+        return "excel";
+    }
+
+    @RequestMapping(method = RequestMethod.POST, value = "/uploadExcelFile")
+    public String uploadFile(Model model, MultipartFile file) throws IOException {
+        InputStream in = file.getInputStream();
+        File currDir = new File(".");
+        String path = currDir.getAbsolutePath();
+        fileLocation = path.substring(0, path.length() - 1) + file.getOriginalFilename();
+        FileOutputStream f = new FileOutputStream(fileLocation);
+        int ch = 0;
+        while ((ch = in.read()) != -1) {
+            f.write(ch);
+        }
+        f.flush();
+        f.close();
+        System.out.println(fileLocation);
+        model.addAttribute("message", "File: " + file.getOriginalFilename() + " has been uploaded successfully!");
+        return "excel";
+    }
+
+    @RequestMapping(method = RequestMethod.GET, value = "/readJExcel")
+    public String readJExcel(Model model) throws IOException, BiffException {
+
+        if (fileLocation != null) {
+            if (fileLocation.endsWith(".xls")) {
+                Map<Integer, ArrayList<String>> data = jExcelHelper.readJExcel(fileLocation);
+                model.addAttribute("data", data);
+            } else {
+                model.addAttribute("message", "Not a valid .xls file!");
+            }
+        } else {
+            model.addAttribute("message", "File missing! Please upload an excel file.");
+        }
+        return "excel";
+    }
+
+    @RequestMapping(method = RequestMethod.GET, value = "/readPOI")
+    public String readPOI(Model model) throws IOException {
+
+        if (fileLocation != null) {
+            if (fileLocation.endsWith(".xlsx")) {
+                Map<Integer, ArrayList<String>> data = excelPOIHelper.readExcel(fileLocation);
+                model.addAttribute("data", data);
+            } else {
+                model.addAttribute("message", "Not a valid .xlsx file!");
+            }
+        } else {
+            model.addAttribute("message", "File missing! Please upload an excel file.");
+        }
+        return "excel";
+    }
+
+    @RequestMapping(method = RequestMethod.POST, value = "/writeJExcel")
+    public String writeJExcel(Model model) throws IOException, BiffException, WriteException {
+
+        jExcelHelper.writeJExcel();
+
+        model.addAttribute("message", "Write successful!");
+
+        return "excel";
+    }
+
+    @RequestMapping(method = RequestMethod.POST, value = "/writePOI")
+    public String writePOI(Model model) throws IOException {
+
+        excelPOIHelper.writeExcel();
+
+        model.addAttribute("message", "Write successful!");
+
+        return "excel";
+    }
+
+}
--- a/spring-mvc-java/src/main/webapp/WEB-INF/view/excel.jsp
+++ b/spring-mvc-java/src/main/webapp/WEB-INF/view/excel.jsp
@ -0,0 +1,56 @@
+<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
+    pageEncoding="ISO-8859-1"%>
+<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<title>Excel Processing</title>
+</head>
+<body>
+<c:url value="/uploadExcelFile" var="uploadFileUrl" />
+<c:url value="/excelProcessing" var="resetUrl" />
+<c:url value="/readJExcel" var="readJExcelUrl" />
+<c:url value="/writeJExcel" var="writeJExcelUrl" />
+<c:url value="/readPOI" var="readPOIUrl" />
+<c:url value="/writePOI" var="writePOIUrl" />
+
+<form method="post" enctype="multipart/form-data" action="${uploadFileUrl}" >
+<input type="file" name="file" accept=".xls,.xlsx"/>
+<input type="submit" value="Upload file"/>
+</form>
+<br />
+${message }
+<br /> <br />
+<form method="GET" action="${resetUrl}" >
+<input type="submit" value="Reset" />
+</form>
+<br /> <br />
+<a href="${readJExcelUrl}">Read file using JExcel</a> &nbsp;&nbsp;&nbsp;
+<a href="${readPOIUrl}">Read file using Apache POI</a>
+<br /> <br /> 
+
+File content:
+<c:if test="${not empty data}">
+<table style="border:1px solid black;border-collapse:collapse;">
+<c:forEach items="${data}" var="row">
+<tr>
+    <c:forEach items="${row.value}" var="cell">
+        <td style="border:1px solid black">${cell}</td>
+    </c:forEach>
+</tr>   
+</c:forEach>
+</table>
+</c:if>
+<br /> <br />
+<form action="${writeJExcelUrl}" method="POST">
+<input type="submit" value="Write to file using JExcel" />
+</form>
+<br />
+<form action="${writePOIUrl}" method="POST">
+<input type="submit" value="Write to file using Apache POI" />
+</form>
+
+   
+</body>
+</html>
--- a/spring-security-openid/README.md
+++ b/spring-security-openid/README.md
@ -2,15 +2,13 @@

 ## OpenID Connect with Spring Security

-
-### Build the Project
+### Run the Project
 ```
-mvn clean install
+mvn spring-boot:run
 ```

-
 ### Obtain Google App - Client ID, Secret
- You need to get client id and client secret from [Google Developer Console](https://console.developers.google.com/project/_/apiui/credential?pli=1)
+- You need to get client id and client secret by creating a new project at [Google Developer Console](https://console.developers.google.com/project/_/apiui/credential?pli=1)
 - Make sure to add OAuth2 credentials by selecting Add credentials > OAuth 2.0 client ID
 - Make sure you set redirect URI to http://localhost:8081/google-login

--- a/spring-security-openid/pom.xml
+++ b/spring-security-openid/pom.xml
@ -3,11 +3,11 @@
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.baeldung</groupId>
-    <artifactId>spring-openid</artifactId>
+    <artifactId>spring-security-openid</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>

-    <name>spring-openid</name>
+    <name>spring-security-openid</name>
    <description>Spring OpenID sample project</description>

    <parent>
--- a/spring-security-openid/src/main/java/org/baeldung/config/GoogleOpenIdConnectConfig.java
+++ b/spring-security-openid/src/main/java/org/baeldung/config/GoogleOpenIdConnectConfig.java
--- a/spring-security-openid/src/main/java/org/baeldung/config/HomeController.java
+++ b/spring-security-openid/src/main/java/org/baeldung/config/HomeController.java
--- a/spring-security-openid/src/main/java/org/baeldung/config/SecurityConfig.java
+++ b/spring-security-openid/src/main/java/org/baeldung/config/SecurityConfig.java
--- a/spring-security-openid/src/main/java/org/baeldung/config/SpringOpenidApplication.java
+++ b/spring-security-openid/src/main/java/org/baeldung/config/SpringOpenidApplication.java
--- a/spring-security-openid/src/main/java/org/baeldung/security/OpenIdConnectFilter.java
+++ b/spring-security-openid/src/main/java/org/baeldung/security/OpenIdConnectFilter.java
--- a/spring-security-openid/src/main/java/org/baeldung/security/OpenIdConnectUserDetails.java
+++ b/spring-security-openid/src/main/java/org/baeldung/security/OpenIdConnectUserDetails.java
--- a/spring-security-openid/src/main/resources/application.properties.sample.properties
+++ b/spring-security-openid/src/main/resources/application.properties.sample.properties