Merge remote-tracking branch 'upstream/master' into BAEL-2809

# Conflicts:
#	persistence-modules/spring-data-jpa-2/pom.xml

core-groovy-2/README.md

@@ -2,4 +2,6 @@
 
 ## Relevant articles:
 
-- [String Matching in Groovy](http://www.baeldung.com/)
+- [String Matching in Groovy](http://www.baeldung.com/)
+- [Groovy def Keyword]
+

core-groovy-2/pom.xml

@@ -2,7 +2,7 @@
 <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>
-    <artifactId>core-groovy</artifactId>
+    <artifactId>core-groovy-2</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>core-groovy-2</name>
     <packaging>jar</packaging>
@@ -14,12 +14,33 @@
     </parent>
 
     <dependencies>
+        <dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy</artifactId>
+            <version>${groovy.version}</version>
+        </dependency>
         <dependency>
             <groupId>org.codehaus.groovy</groupId>
             <artifactId>groovy-all</artifactId>
             <version>${groovy-all.version}</version>
             <type>pom</type>
         </dependency>
+        <dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy-dateutil</artifactId>
+            <version>${groovy.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy-sql</artifactId>
+            <version>${groovy-sql.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.platform</groupId>
+            <artifactId>junit-platform-runner</artifactId>
+            <version>${junit.platform.version}</version>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>org.hsqldb</groupId>
             <artifactId>hsqldb</artifactId>
@@ -43,12 +64,39 @@
                 <executions>
                     <execution>
                         <goals>
+                            <goal>addSources</goal>
+                            <goal>addTestSources</goal>
                             <goal>compile</goal>
                             <goal>compileTests</goal>
                         </goals>
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <artifactId>maven-failsafe-plugin</artifactId>
+                <version>${maven-failsafe-plugin.version}</version>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.junit.platform</groupId>
+                        <artifactId>junit-platform-surefire-provider</artifactId>
+                        <version>${junit.platform.version}</version>
+                    </dependency>
+                </dependencies>
+                <executions>
+                    <execution>
+                        <id>junit5</id>
+                        <goals>
+                            <goal>integration-test</goal>
+                            <goal>verify</goal>
+                        </goals>
+                        <configuration>
+                            <includes>
+                                <include>**/*Test5.java</include>
+                            </includes>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <artifactId>maven-surefire-plugin</artifactId>
                 <version>2.20.1</version>
@@ -71,10 +119,13 @@
     </repositories>
 
     <properties>
+        <junit.platform.version>1.0.0</junit.platform.version>
+        <groovy.version>2.5.6</groovy.version>
         <groovy-all.version>2.5.6</groovy-all.version>
+        <groovy-sql.version>2.5.6</groovy-sql.version>
         <hsqldb.version>2.4.0</hsqldb.version>
-        <spock-core.version>1.3-groovy-2.5</spock-core.version>
+        <spock-core.version>1.1-groovy-2.4</spock-core.version>
-        <gmavenplus-plugin.version>1.6.3</gmavenplus-plugin.version>
+        <gmavenplus-plugin.version>1.6</gmavenplus-plugin.version>
     </properties>
 </project>
 

core-groovy-2/src/test/groovy/com/baeldung/defkeyword/DefUnitTest.groovy

@@ -0,0 +1,79 @@
+package com.baeldung.defkeyword
+
+import org.codehaus.groovy.runtime.NullObject
+import org.codehaus.groovy.runtime.typehandling.GroovyCastException
+
+import groovy.transform.TypeChecked
+import groovy.transform.TypeCheckingMode
+
+@TypeChecked
+class DefUnitTest extends GroovyTestCase {
+    
+    def id
+    def firstName = "Samwell"
+    def listOfCountries = ['USA', 'UK', 'FRANCE', 'INDIA']
+    
+    @TypeChecked(TypeCheckingMode.SKIP)
+    def multiply(x, y) {
+        return x*y
+    }
+        
+    @TypeChecked(TypeCheckingMode.SKIP)
+    void testDefVariableDeclaration() {
+        
+        def list
+        assert list.getClass() == org.codehaus.groovy.runtime.NullObject
+        assert list.is(null)
+        
+        list = [1,2,4]
+        assert list instanceof ArrayList
+    }
+    
+    @TypeChecked(TypeCheckingMode.SKIP)
+    void testTypeVariables() {   
+        int rate = 200
+        try {
+            rate = [12] //GroovyCastException
+            rate = "nill" //GroovyCastException
+        } catch(GroovyCastException) {
+            println "Cannot assign anything other than integer"
+        }
+    }
+     
+    @TypeChecked(TypeCheckingMode.SKIP)
+    void testDefVariableMultipleAssignment() {
+        def rate
+        assert rate == null
+        assert rate.getClass() == org.codehaus.groovy.runtime.NullObject
+        
+        rate = 12
+        assert rate instanceof Integer
+        
+        rate = "Not Available"
+        assert rate instanceof String
+        
+        rate = [1, 4]
+        assert rate instanceof List
+        
+        assert divide(12, 3) instanceof BigDecimal
+        assert divide(1, 0) instanceof String
+
+    }
+    
+    def divide(int x, int y) {
+        if(y==0) {
+            return "Should not divide by 0"
+        } else {
+            return x/y
+        }
+    }
+    
+    def greetMsg() {
+        println "Hello! I am Groovy"
+    }
+    
+    void testDefVsType() {
+        def int count
+        assert count instanceof Integer
+    }
+}

httpclient-simple/.gitignore

@@ -0,0 +1,13 @@
+*.class
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+
+# Packaged files #
+*.jar
+*.war
+*.ear

httpclient-simple/README.md

@@ -0,0 +1,10 @@
+=========
+## HttpClient 4.x Cookbooks and Examples
+
+###The Course
+The "REST With Spring" Classes: http://bit.ly/restwithspring
+
+
+### Relevant Articles: 
+
+- [HttpClient 4 – Get the Status Code](http://www.baeldung.com/httpclient-status-code)

httpclient-simple/pom.xml

@@ -0,0 +1,133 @@
+<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>httpclient-simple</artifactId>
+    <version>0.1-SNAPSHOT</version>
+    <name>httpclient-simple</name>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-java</relativePath>
+    </parent>
+
+    <dependencies>
+        <!-- utils -->
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+        <!-- http client -->
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpclient</artifactId>
+            <version>${httpclient.version}</version>
+            <exclusions>
+                <exclusion>
+                    <artifactId>commons-logging</artifactId>
+                    <groupId>commons-logging</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>fluent-hc</artifactId>
+            <version>${httpclient.version}</version>
+            <exclusions>
+                <exclusion>
+                    <artifactId>commons-logging</artifactId>
+                    <groupId>commons-logging</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpmime</artifactId>
+            <version>${httpclient.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>commons-codec</groupId>
+            <artifactId>commons-codec</artifactId>
+            <version>${commons-codec.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpasyncclient</artifactId>
+            <version>${httpasyncclient.version}</version> <!-- 4.0.2 --> <!-- 4.1-beta1 -->
+            <exclusions>
+                <exclusion>
+                    <artifactId>commons-logging</artifactId>
+                    <groupId>commons-logging</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>com.github.tomakehurst</groupId>
+            <artifactId>wiremock</artifactId>
+            <version>${wiremock.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>httpclient</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+
+    <profiles>
+        <profile>
+            <id>live</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-surefire-plugin</artifactId>
+                        <executions>
+                            <execution>
+                                <phase>integration-test</phase>
+                                <goals>
+                                    <goal>test</goal>
+                                </goals>
+                                <configuration>
+                                    <excludes>
+                                        <exclude>**/*ManualTest.java</exclude>
+                                    </excludes>
+                                    <includes>
+                                        <include>**/*LiveTest.java</include>
+                                    </includes>
+                                </configuration>
+                            </execution>
+                        </executions>
+                        <configuration>
+                            <systemPropertyVariables>
+                                <test.mime>json</test.mime>
+                            </systemPropertyVariables>
+                        </configuration>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+    </profiles>
+
+    <properties>
+        <!-- util -->
+        <guava.version>19.0</guava.version>
+        <commons-lang3.version>3.5</commons-lang3.version>
+        <commons-codec.version>1.10</commons-codec.version>
+        <httpasyncclient.version>4.1.4</httpasyncclient.version>
+        <!-- testing -->
+        <wiremock.version>2.5.1</wiremock.version>
+        <httpclient.version>4.5.8</httpclient.version> <!-- 4.3.6 --> <!-- 4.4-beta1 -->
+        <!-- maven plugins -->
+        <cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>
+    </properties>
+
+</project>

httpclient-simple/src/main/resources/logback.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <logger name="org.springframework" level="WARN" />
+    <logger name="org.springframework.transaction" level="WARN" />
+
+    <!-- in order to debug some marshalling issues, this needs to be TRACE -->
+    <logger name="org.springframework.web.servlet.mvc" level="WARN" />
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

httpclient-simple/src/test/java/org/baeldung/httpclient/ResponseUtil.java

@@ -0,0 +1,26 @@
+package org.baeldung.httpclient;
+
+import org.apache.http.HttpEntity;
+import org.apache.http.client.methods.CloseableHttpResponse;
+
+import java.io.IOException;
+
+public final class ResponseUtil {
+    private ResponseUtil() {
+    }
+
+    public static void closeResponse(CloseableHttpResponse response) throws IOException {
+        if (response == null) {
+            return;
+        }
+
+        try {
+            final HttpEntity entity = response.getEntity();
+            if (entity != null) {
+                entity.getContent().close();
+            }
+        } finally {
+            response.close();
+        }
+    }
+}

httpclient-simple/src/test/resources/.gitignore

@@ -0,0 +1,13 @@
+*.class
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+
+# Packaged files #
+*.jar
+*.war
+*.ear

httpclient/README.md

@@ -8,7 +8,6 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
 ### Relevant Articles: 
 
 - [HttpClient 4 – Send Custom Cookie](http://www.baeldung.com/httpclient-4-cookies)
-- [HttpClient 4 – Get the Status Code](http://www.baeldung.com/httpclient-status-code)
 - [HttpClient 4 – Cancel Request](http://www.baeldung.com/httpclient-cancel-request)
 - [HttpClient 4 Cookbook](http://www.baeldung.com/httpclient4)
 - [Unshorten URLs with HttpClient](http://www.baeldung.com/unshorten-url-httpclient)

httpclient/pom.xml

@@ -122,11 +122,10 @@
         <guava.version>19.0</guava.version>
         <commons-lang3.version>3.5</commons-lang3.version>
         <commons-codec.version>1.10</commons-codec.version>
-        <httpasyncclient.version>4.1.2</httpasyncclient.version>
+        <httpasyncclient.version>4.1.4</httpasyncclient.version>
         <!-- testing -->
         <wiremock.version>2.5.1</wiremock.version>
-        <httpcore.version>4.4.5</httpcore.version>
+        <httpclient.version>4.5.8</httpclient.version> <!-- 4.3.6 --> <!-- 4.4-beta1 -->
-        <httpclient.version>4.5.3</httpclient.version> <!-- 4.3.6 --> <!-- 4.4-beta1 -->
         <!-- maven plugins -->
         <cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>
     </properties>

httpclient/src/test/java/org/baeldung/httpclient/HttpAsyncClientLiveTest.java

@@ -4,7 +4,6 @@ import static org.hamcrest.Matchers.equalTo;
 import static org.junit.Assert.assertThat;
 
 import java.io.IOException;
-import java.security.cert.X509Certificate;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 
@@ -18,8 +17,7 @@ import org.apache.http.client.CredentialsProvider;
 import org.apache.http.client.config.RequestConfig;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.client.protocol.HttpClientContext;
-import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
+import org.apache.http.conn.ssl.NoopHostnameVerifier;
-import org.apache.http.conn.ssl.SSLContexts;
 import org.apache.http.conn.ssl.TrustStrategy;
 import org.apache.http.impl.client.BasicCookieStore;
 import org.apache.http.impl.client.BasicCredentialsProvider;
@@ -31,6 +29,7 @@ import org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor;
 import org.apache.http.nio.reactor.ConnectingIOReactor;
 import org.apache.http.protocol.BasicHttpContext;
 import org.apache.http.protocol.HttpContext;
+import org.apache.http.ssl.SSLContexts;
 import org.junit.Test;
 
 public class HttpAsyncClientLiveTest {
@@ -104,7 +103,7 @@ public class HttpAsyncClientLiveTest {
         final TrustStrategy acceptingTrustStrategy = (certificate, authType) -> true;
         final SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy).build();
 
-        final CloseableHttpAsyncClient client = HttpAsyncClients.custom().setSSLHostnameVerifier(SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER).setSSLContext(sslContext).build();
+        final CloseableHttpAsyncClient client = HttpAsyncClients.custom().setSSLHostnameVerifier(NoopHostnameVerifier.INSTANCE).setSSLContext(sslContext).build();
 
         client.start();
         final HttpGet request = new HttpGet(HOST_WITH_SSL);

httpclient/src/test/java/org/baeldung/httpclient/HttpsClientSslLiveTest.java

@@ -1,32 +1,31 @@
 package org.baeldung.httpclient;
 
-import org.apache.http.HttpResponse;
-import org.apache.http.client.methods.HttpGet;
-import org.apache.http.conn.ClientConnectionManager;
-import org.apache.http.conn.scheme.Scheme;
-import org.apache.http.conn.scheme.SchemeRegistry;
-import org.apache.http.conn.ssl.NoopHostnameVerifier;
-import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
-import org.apache.http.conn.ssl.SSLSocketFactory;
-import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
-import org.apache.http.conn.ssl.TrustStrategy;
-import org.apache.http.impl.client.CloseableHttpClient;
-import org.apache.http.impl.client.DefaultHttpClient;
-import org.apache.http.impl.client.HttpClientBuilder;
-import org.apache.http.impl.client.HttpClients;
-import org.apache.http.impl.conn.PoolingClientConnectionManager;
-import org.apache.http.ssl.SSLContextBuilder;
-import org.apache.http.ssl.SSLContexts;
-import org.junit.Test;
-
-import javax.net.ssl.SSLContext;
-import javax.net.ssl.SSLHandshakeException;
-import java.io.IOException;
-import java.security.GeneralSecurityException;
-
 import static org.hamcrest.CoreMatchers.equalTo;
 import static org.junit.Assert.assertThat;
 
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.SSLHandshakeException;
+
+import org.apache.http.HttpResponse;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.config.Registry;
+import org.apache.http.config.RegistryBuilder;
+import org.apache.http.conn.socket.ConnectionSocketFactory;
+import org.apache.http.conn.ssl.NoopHostnameVerifier;
+import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
+import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
+import org.apache.http.conn.ssl.TrustStrategy;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClientBuilder;
+import org.apache.http.impl.client.HttpClients;
+import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
+import org.apache.http.ssl.SSLContextBuilder;
+import org.apache.http.ssl.SSLContexts;
+import org.junit.Test;
+
 /**
  * This test requires a localhost server over HTTPS <br>
  * It should only be manually run, not part of the automated build
@@ -50,16 +49,22 @@ public class HttpsClientSslLiveTest {
             .getStatusCode(), equalTo(200));
     }
 
-    @SuppressWarnings("deprecation")
     @Test
     public final void givenHttpClientPre4_3_whenAcceptingAllCertificates_thenCanConsumeHttpsUriWithSelfSignedCertificate() throws IOException, GeneralSecurityException {
         final TrustStrategy acceptingTrustStrategy = (certificate, authType) -> true;
-        final SSLSocketFactory sf = new SSLSocketFactory(acceptingTrustStrategy, SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
+        
-        final SchemeRegistry registry = new SchemeRegistry();
+        final SSLContext sslContext = SSLContexts.custom()
-        registry.register(new Scheme("https", 443, sf));
+                .loadTrustMaterial(null, acceptingTrustStrategy)
-        final ClientConnectionManager ccm = new PoolingClientConnectionManager(registry);
+                .build();
 
-        final CloseableHttpClient httpClient = new DefaultHttpClient(ccm);
+        final SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);
+        Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory> create().register("https", sslsf).build();
+        PoolingHttpClientConnectionManager clientConnectionManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
+
+        final CloseableHttpClient httpClient = HttpClients.custom()
+                .setSSLSocketFactory(sslsf)
+                .setConnectionManager(clientConnectionManager)
+                .build();
 
         final HttpGet getMethod = new HttpGet(HOST_WITH_SSL);
         final HttpResponse response = httpClient.execute(getMethod);
@@ -76,10 +81,9 @@ public class HttpsClientSslLiveTest {
             .loadTrustMaterial(null, acceptingTrustStrategy)
             .build();
 
-        final SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext, SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
+        final SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);
 
         final CloseableHttpClient httpClient = HttpClients.custom()
-            .setHostnameVerifier(SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER)
             .setSSLSocketFactory(sslsf)
             .build();
 

httpclient/src/test/java/org/baeldung/httpclient/conn/HttpClientConnectionManagementLiveTest.java

@@ -327,7 +327,8 @@ public class HttpClientConnectionManagementLiveTest {
     // 8.1
     public final void whenHttpClientChecksStaleConns_thenNoExceptions() {
         poolingConnManager = new PoolingHttpClientConnectionManager();
-        client = HttpClients.custom().setDefaultRequestConfig(RequestConfig.custom().setStaleConnectionCheckEnabled(true).build()).setConnectionManager(poolingConnManager).build();
+        poolingConnManager.setValidateAfterInactivity(1000);
+        client = HttpClients.custom().setDefaultRequestConfig(RequestConfig.custom().build()).setConnectionManager(poolingConnManager).build();
     }
 
     @Test

jackson-2/pom.xml

@@ -22,6 +22,20 @@
             <version>${jackson.version}</version>
         </dependency>
 
+        <!-- YAML -->
+        <dependency>
+            <groupId>com.fasterxml.jackson.dataformat</groupId>
+            <artifactId>jackson-dataformat-yaml</artifactId>
+            <version>2.9.8</version>
+        </dependency>
+
+        <!-- Allow use of LocalDate -->
+        <dependency>
+            <groupId>com.fasterxml.jackson.datatype</groupId>
+            <artifactId>jackson-datatype-jsr310</artifactId>
+            <version>2.9.8</version>
+        </dependency>
+
 
         <!-- test scoped -->
 

jackson-2/src/main/java/com/baeldung/jackson/entities/Order.java

@@ -0,0 +1,68 @@
+package com.baeldung.jackson.entities;
+
+import java.time.LocalDate;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Order {
+    private String orderNo;
+    private LocalDate date;
+    private String customerName;
+    private List<OrderLine> orderLines;
+
+    public Order() {
+
+    }
+
+    public Order(String orderNo, LocalDate date, String customerName, List<OrderLine> orderLines) {
+        super();
+        this.orderNo = orderNo;
+        this.date = date;
+        this.customerName = customerName;
+        this.orderLines = orderLines;
+    }
+
+    public String getOrderNo() {
+        return orderNo;
+    }
+
+    public void setOrderNo(String orderNo) {
+        this.orderNo = orderNo;
+    }
+
+    public LocalDate getDate() {
+        return date;
+    }
+
+    public void setDate(LocalDate date) {
+        this.date = date;
+    }
+
+    public String getCustomerName() {
+        return customerName;
+    }
+
+    public void setCustomerName(String customerName) {
+        this.customerName = customerName;
+    }
+
+    public List<OrderLine> getOrderLines() {
+        if (orderLines == null) {
+            orderLines = new ArrayList<>();
+        }
+        return orderLines;
+    }
+
+    public void setOrderLines(List<OrderLine> orderLines) {
+        if (orderLines == null) {
+            orderLines = new ArrayList<>();
+        }
+        this.orderLines = orderLines;
+    }
+
+    @Override
+    public String toString() {
+        return "Order [orderNo=" + orderNo + ", date=" + date + ", customerName=" + customerName + ", orderLines=" + orderLines + "]";
+    }
+
+}

jackson-2/src/main/java/com/baeldung/jackson/entities/OrderLine.java

@@ -0,0 +1,49 @@
+package com.baeldung.jackson.entities;
+
+import java.math.BigDecimal;
+
+public class OrderLine {
+    private String item;
+    private int quantity;
+    private BigDecimal unitPrice;
+    
+    public OrderLine() {
+        
+    }
+
+    public OrderLine(String item, int quantity, BigDecimal unitPrice) {
+        super();
+        this.item = item;
+        this.quantity = quantity;
+        this.unitPrice = unitPrice;
+    }
+
+    public String getItem() {
+        return item;
+    }
+
+    public void setItem(String item) {
+        this.item = item;
+    }
+
+    public int getQuantity() {
+        return quantity;
+    }
+
+    public void setQuantity(int quantity) {
+        this.quantity = quantity;
+    }
+
+    public BigDecimal getUnitPrice() {
+        return unitPrice;
+    }
+
+    public void setUnitPrice(BigDecimal unitPrice) {
+        this.unitPrice = unitPrice;
+    }
+
+    @Override
+    public String toString() {
+        return "OrderLine [item=" + item + ", quantity=" + quantity + ", unitPrice=" + unitPrice + "]";
+    }
+}

jackson-2/src/main/resources/orderInput.yaml

@@ -0,0 +1,11 @@
+orderNo: A001
+date: 2019-04-17
+customerName: Customer, Joe
+orderLines:
+    - item: No. 9 Sprockets
+      quantity: 12
+      unitPrice: 1.23
+    - item: Widget (10mm)
+      quantity: 4
+      unitPrice: 3.45
+      

jackson-2/src/test/java/com/baeldung/jackson/yaml/YamlUnitTest.java

@@ -0,0 +1,63 @@
+package com.baeldung.jackson.yaml;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.io.File;
+import java.io.IOException;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import com.baeldung.jackson.entities.Order;
+import com.baeldung.jackson.entities.OrderLine;
+import com.fasterxml.jackson.core.JsonGenerationException;
+import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
+import com.fasterxml.jackson.dataformat.yaml.YAMLGenerator.Feature;
+
+public class YamlUnitTest {
+    private ObjectMapper mapper;
+
+    @Before
+    public void setup() {
+        mapper = new ObjectMapper(new YAMLFactory().disable(Feature.WRITE_DOC_START_MARKER));
+        mapper.findAndRegisterModules();
+        mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
+    }
+
+    @Test
+    public void givenYamlInput_ObjectCreated() throws JsonParseException, JsonMappingException, IOException {
+        Order order = mapper.readValue(new File("src/main/resources/orderInput.yaml"), Order.class);
+        assertEquals("A001", order.getOrderNo());
+        assertEquals(LocalDate.parse("2019-04-17", DateTimeFormatter.ISO_DATE), order.getDate());
+        assertEquals("Customer, Joe", order.getCustomerName());
+        assertEquals(2, order.getOrderLines()
+            .size());
+    }
+
+    @Test
+    public void givenYamlObject_FileWritten() throws JsonGenerationException, JsonMappingException, IOException {
+        List<OrderLine> lines = new ArrayList<>();
+        lines.add(new OrderLine("Copper Wire (200ft)", 1, new BigDecimal(50.67).setScale(2, RoundingMode.HALF_UP)));
+        lines.add(new OrderLine("Washers (1/4\")", 24, new BigDecimal(.15).setScale(2, RoundingMode.HALF_UP)));
+        Order order = new Order(
+            "B-9910", 
+            LocalDate.parse("2019-04-18", DateTimeFormatter.ISO_DATE), 
+            "Customer, Jane", 
+            lines);
+        mapper.writeValue(new File("src/main/resources/orderOutput.yaml"), order);
+
+        File outputYaml = new File("src/main/resources/orderOutput.yaml");
+        assertTrue(outputYaml.exists());
+    }
+}

persistence-modules/spring-data-jpa-2/pom.xml

@@ -3,6 +3,7 @@
     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>spring-data-jpa-2</artifactId>
     <name>spring-data-jpa</name>
@@ -30,6 +31,15 @@
             <artifactId>datasource-proxy</artifactId>
             <version>1.4.1</version>
         </dependency>
-    </dependencies>
 
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-oxm</artifactId>
+        </dependency>
+    </dependencies>
 </project>

persistence-modules/spring-data-jpa-2/src/main/java/com/baeldung/config/JpaPopulators.java

@@ -0,0 +1,35 @@
+package com.baeldung.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.Resource;
+import org.springframework.data.repository.init.Jackson2RepositoryPopulatorFactoryBean;
+import org.springframework.data.repository.init.UnmarshallerRepositoryPopulatorFactoryBean;
+import org.springframework.oxm.jaxb.Jaxb2Marshaller;
+
+import com.baeldung.entity.Fruit;
+
+@Configuration
+public class JpaPopulators {
+
+    @Bean
+    public Jackson2RepositoryPopulatorFactoryBean getRespositoryPopulator() throws Exception {
+        Jackson2RepositoryPopulatorFactoryBean factory = new Jackson2RepositoryPopulatorFactoryBean();
+        factory.setResources(new Resource[] { new ClassPathResource("fruit-data.json") });
+        return factory;
+    }
+
+    @Bean
+    public UnmarshallerRepositoryPopulatorFactoryBean repositoryPopulator() {
+
+        Jaxb2Marshaller unmarshaller = new Jaxb2Marshaller();
+        unmarshaller.setClassesToBeBound(Fruit.class);
+
+        UnmarshallerRepositoryPopulatorFactoryBean factory = new UnmarshallerRepositoryPopulatorFactoryBean();
+        factory.setUnmarshaller(unmarshaller);
+        factory.setResources(new Resource[] { new ClassPathResource("apple-fruit-data.xml"), new ClassPathResource("guava-fruit-data.xml") });
+        return factory;
+    }
+
+}

persistence-modules/spring-data-jpa-2/src/main/java/com/baeldung/entity/Fruit.java

@@ -2,7 +2,9 @@ package com.baeldung.entity;
 
 import javax.persistence.Entity;
 import javax.persistence.Id;
+import javax.xml.bind.annotation.XmlRootElement;
 
+@XmlRootElement
 @Entity
 public class Fruit {
 

persistence-modules/spring-data-jpa-2/src/main/resources/apple-fruit-data.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<fruit>
+    <id>1</id>
+    <name>apple</name>
+    <color>red</color>
+</fruit>

persistence-modules/spring-data-jpa-2/src/main/resources/fruit-data.json

@@ -0,0 +1,14 @@
+[
+    {
+        "_class": "com.baeldung.entity.Fruit",
+        "name": "apple",
+        "color": "red",
+        "id": 1
+    },
+    {
+        "_class": "com.baeldung.entity.Fruit",
+        "name": "guava",
+        "color": "green",
+        "id": 2
+    }
+]

persistence-modules/spring-data-jpa-2/src/main/resources/guava-fruit-data.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<fruit>
+    <id>2</id>
+    <name>guava</name>
+    <color>green</color>
+</fruit>

persistence-modules/spring-data-jpa-2/src/test/java/com/baeldung/repository/FruitPopulatorTest.java

@@ -0,0 +1,38 @@
+package com.baeldung.repository;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.List;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import com.baeldung.entity.Fruit;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class FruitPopulatorTest {
+
+    @Autowired
+    private FruitRepository fruitRepository;
+
+    @Test
+    public void givenFruitJsonPopulatorThenShouldInsertRecordOnStart() {
+
+        List<Fruit> fruits = fruitRepository.findAll();
+        assertEquals("record count is not matching", 2, fruits.size());
+
+        fruits.forEach(fruit -> {
+            if (1 == fruit.getId()) {
+                assertEquals("apple", fruit.getName());
+                assertEquals("red", fruit.getColor());
+            } else if (2 == fruit.getId()) {
+                assertEquals("guava", fruit.getName());
+                assertEquals("green", fruit.getColor());
+            }
+        });
+    }
+}

pom.xml

@@ -376,6 +376,7 @@
                 <module>cdi</module>
                 <module>checker-plugin</module>
                 <module>core-groovy</module>
+                <module>core-groovy-2</module>
                 <!-- <module>core-java-10</module> --> <!-- We haven't upgraded to java 10. Fixing in BAEL-10841 -->
                 <!-- <module>core-java-11</module> --> <!-- We haven't upgraded to java 11. Fixing in BAEL-10841 -->
                 <!-- <module>core-java-12</module> --> <!-- We haven't upgraded to java 12. Fixing in BAEL-10841 -->
@@ -436,6 +437,7 @@
                 <module>hazelcast</module>
                 <module>helidon</module>
                 <module>httpclient</module>
+                <module>httpclient-simple</module>
                 <module>hystrix</module>
 
                 <module>image-processing</module>
@@ -1103,6 +1105,7 @@
                 <module>hazelcast</module>
                 <module>helidon</module>
                 <module>httpclient</module>
+                <module>httpclient-simple</module>
                 <module>hystrix</module>
 
                 <module>image-processing</module>