diff --git a/xstream-xmlToObject/.project b/xstream-xmlToObject/.project
index 133b92d690..4e1a3f6e92 100644
--- a/xstream-xmlToObject/.project
+++ b/xstream-xmlToObject/.project
@@ -1,23 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
-	<name>xstream-xmlToObject</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.m2e.core.maven2Builder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.jdt.core.javanature</nature>
-		<nature>org.eclipse.m2e.core.maven2Nature</nature>
-	</natures>
-</projectDescription>
+  <name>xstream-xmlToObject</name>
+  <comment>NO_M2ECLIPSE_SUPPORT: Project files created with the maven-eclipse-plugin are not supported in M2Eclipse.</comment>
+  <projects/>
+  <buildSpec>
+    <buildCommand>
+      <name>org.eclipse.jdt.core.javabuilder</name>
+    </buildCommand>
+  </buildSpec>
+  <natures>
+    <nature>org.eclipse.jdt.core.javanature</nature>
+  </natures>
+</projectDescription>
\ No newline at end of file
diff --git a/xstream-xmlToObject/src/main/java/com/baeldung/initializer/SimpleXstreamInitializer.java b/xstream-xmlToObject/src/main/java/com/baeldung/initializer/SimpleXstreamInitializer.java
index 8281678bab..d7dc3f7a81 100644
--- a/xstream-xmlToObject/src/main/java/com/baeldung/initializer/SimpleXstreamInitializer.java
+++ b/xstream-xmlToObject/src/main/java/com/baeldung/initializer/SimpleXstreamInitializer.java
@@ -4,9 +4,9 @@ import com.thoughtworks.xstream.XStream;
 
 public class SimpleXstreamInitializer {
 
-	private static XStream xtreamInstance;
+	private XStream xtreamInstance;
 
-	public static XStream getXstreamInstance() {
+	public XStream getXstreamInstance() {
 		if (xtreamInstance == null) {
 			synchronized (SimpleXstreamInitializer.class) {
 				if (xtreamInstance == null) {
diff --git a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectAnnotationTest.java b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectAnnotationTest.java
index dff671b6a6..10f59e843b 100644
--- a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectAnnotationTest.java
+++ b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectAnnotationTest.java
@@ -1,6 +1,5 @@
 package com.baeldung.pojo.test;
 
-import java.io.File;
 import java.io.FileReader;
 import java.io.IOException;
 
@@ -18,14 +17,16 @@ public class ComplexXmlToObjectAnnotationTest {
 
 	@Before
 	public void dataSetup() {
-		xstream = SimpleXstreamInitializer.getXstreamInstance();
+		SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+		xstream = simpleXstreamInitializer.getXstreamInstance();
 		xstream.processAnnotations(Customer.class);
 	}
 	
 	@Test
 	public void convertXmlToObjectFromFile() {
 		try {
-			FileReader reader = new FileReader(new File("data-file-alias-field-complex.xml"));
+			ClassLoader classLoader = getClass().getClassLoader();
+			FileReader reader = new FileReader(classLoader.getResource("data-file-alias-field-complex.xml").getFile());
 			Customer customer = (Customer) xstream.fromXML(reader);
 			Assert.assertNotNull(customer);
 			Assert.assertNotNull(customer.getContactDetailsList());
diff --git a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectAttributeCollectionTest.java b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectAttributeCollectionTest.java
index 4494cc833d..876a407f76 100644
--- a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectAttributeCollectionTest.java
+++ b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectAttributeCollectionTest.java
@@ -1,6 +1,5 @@
 package com.baeldung.pojo.test;
 
-import java.io.File;
 import java.io.FileReader;
 import java.io.IOException;
 
@@ -8,8 +7,8 @@ import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 
-import com.baeldung.implicit.collection.pojo.ContactDetails;
-import com.baeldung.implicit.collection.pojo.Customer;
+import com.baeldung.complex.pojo.ContactDetails;
+import com.baeldung.complex.pojo.Customer;
 import com.baeldung.initializer.SimpleXstreamInitializer;
 import com.thoughtworks.xstream.XStream;
 
@@ -19,14 +18,16 @@ public class ComplexXmlToObjectAttributeCollectionTest {
 
 	@Before
 	public void dataSetup() {
-		xstream = SimpleXstreamInitializer.getXstreamInstance();
+		SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+		xstream = simpleXstreamInitializer.getXstreamInstance();
 		xstream.processAnnotations(Customer.class);
 	}
 	
 	@Test
 	public void convertXmlToObjectFromFile() {
 		try {
-			FileReader reader = new FileReader(new File("data-file-alias-implicit-collection.xml"));
+			ClassLoader classLoader = getClass().getClassLoader();
+			FileReader reader = new FileReader(classLoader.getResource("data-file-alias-field-complex.xml").getFile());
 			Customer customer = (Customer) xstream.fromXML(reader);
 			Assert.assertNotNull(customer);
 			Assert.assertNotNull(customer.getContactDetailsList());
diff --git a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectCollectionTest.java b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectCollectionTest.java
index b72ba44eb5..1656d2f230 100644
--- a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectCollectionTest.java
+++ b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectCollectionTest.java
@@ -1,6 +1,5 @@
 package com.baeldung.pojo.test;
 
-import java.io.File;
 import java.io.FileReader;
 import java.io.IOException;
 
@@ -18,14 +17,16 @@ public class ComplexXmlToObjectCollectionTest {
 
 	@Before
 	public void dataSetup() {
-		xstream = SimpleXstreamInitializer.getXstreamInstance();
+		SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+		xstream = simpleXstreamInitializer.getXstreamInstance();
 		xstream.processAnnotations(Customer.class);
 	}
 	
 	@Test
 	public void convertXmlToObjectFromFile() {
 		try {
-			FileReader reader = new FileReader(new File("data-file-alias-implicit-collection.xml"));
+			ClassLoader classLoader = getClass().getClassLoader();
+			FileReader reader = new FileReader(classLoader.getResource("data-file-alias-implicit-collection.xml").getFile());
 			Customer customer = (Customer) xstream.fromXML(reader);
 			Assert.assertNotNull(customer);
 			Assert.assertNotNull(customer.getContactDetailsList());
diff --git a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectAliasTest.java b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectAliasTest.java
index 884071542e..cc6d945254 100644
--- a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectAliasTest.java
+++ b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectAliasTest.java
@@ -1,6 +1,5 @@
 package com.baeldung.pojo.test;
 
-import java.io.File;
 import java.io.FileReader;
 import java.io.IOException;
 
@@ -18,14 +17,16 @@ public class XmlToObjectAliasTest {
 
 	@Before
 	public void dataSetup() {
-		xstream = SimpleXstreamInitializer.getXstreamInstance();
+		SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+		xstream = simpleXstreamInitializer.getXstreamInstance();
 		xstream.alias("customer" , Customer.class);
 	}
 	
 	@Test
 	public void convertXmlToObjectFromFile() {
 		try {
-			FileReader reader = new FileReader(new File("data-file-alias.xml"));
+			ClassLoader classLoader = getClass().getClassLoader();
+			FileReader reader = new FileReader(classLoader.getResource("data-file-alias.xml").getFile());
 			Customer customer = (Customer) xstream.fromXML(reader);
 			Assert.assertNotNull(customer);
 			
diff --git a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectAnnotationTest.java b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectAnnotationTest.java
index 09bed7d24f..f2012e2b12 100644
--- a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectAnnotationTest.java
+++ b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectAnnotationTest.java
@@ -1,6 +1,5 @@
 package com.baeldung.pojo.test;
 
-import java.io.File;
 import java.io.FileReader;
 import java.io.IOException;
 
@@ -18,14 +17,16 @@ public class XmlToObjectAnnotationTest {
 
 	@Before
 	public void dataSetup() {
-		xstream = SimpleXstreamInitializer.getXstreamInstance();
+		SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+		xstream = simpleXstreamInitializer.getXstreamInstance();
 		xstream.processAnnotations(Customer.class);
 	}
 	
 	@Test
 	public void convertXmlToObjectFromFile() {
 		try {
-			FileReader reader = new FileReader(new File("data-file-alias-field.xml"));
+			ClassLoader classLoader = getClass().getClassLoader();
+			FileReader reader = new FileReader(classLoader.getResource("data-file-alias-field.xml").getFile());
 			Customer customer = (Customer) xstream.fromXML(reader);
 			Assert.assertNotNull(customer);
 			Assert.assertNotNull(customer.getFirstName());
diff --git a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectFieldAliasTest.java b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectFieldAliasTest.java
index c613a6517c..c4bba86265 100644
--- a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectFieldAliasTest.java
+++ b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectFieldAliasTest.java
@@ -1,6 +1,5 @@
 package com.baeldung.pojo.test;
 
-import java.io.File;
 import java.io.FileReader;
 import java.io.IOException;
 
@@ -18,7 +17,8 @@ public class XmlToObjectFieldAliasTest {
 
 	@Before
 	public void dataSetup() {
-		xstream = SimpleXstreamInitializer.getXstreamInstance();
+		SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+		xstream = simpleXstreamInitializer.getXstreamInstance();
 		xstream.alias("customer" , Customer.class);
 		xstream.aliasField("fn", Customer.class, "firstName");
 	}
@@ -26,7 +26,8 @@ public class XmlToObjectFieldAliasTest {
 	@Test
 	public void convertXmlToObjectFromFile() {
 		try {
-			FileReader reader = new FileReader(new File("data-file-alias-field.xml"));
+			ClassLoader classLoader = getClass().getClassLoader();
+			FileReader reader = new FileReader(classLoader.getResource("data-file-alias-field.xml").getFile());
 			Customer customer = (Customer) xstream.fromXML(reader);
 			Assert.assertNotNull(customer);
 			Assert.assertNotNull(customer.getFirstName());
diff --git a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectIgnoreFieldsTest.java b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectIgnoreFieldsTest.java
index aa88918402..ca31a22b94 100644
--- a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectIgnoreFieldsTest.java
+++ b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectIgnoreFieldsTest.java
@@ -1,6 +1,5 @@
 package com.baeldung.pojo.test;
 
-import java.io.File;
 import java.io.FileReader;
 import java.io.IOException;
 
@@ -18,7 +17,8 @@ public class XmlToObjectIgnoreFieldsTest {
 
 	@Before
 	public void dataSetup() {
-		xstream = SimpleXstreamInitializer.getXstreamInstance();
+		SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+		xstream = simpleXstreamInitializer.getXstreamInstance();
 		xstream.alias("customer" , Customer.class);
 		xstream.ignoreUnknownElements();
 	}
@@ -26,7 +26,8 @@ public class XmlToObjectIgnoreFieldsTest {
 	@Test
 	public void convertXmlToObjectFromFile() {
 		try {
-			FileReader reader = new FileReader(new File("data-file-ignore-field.xml"));
+			ClassLoader classLoader = getClass().getClassLoader();
+			FileReader reader = new FileReader(classLoader.getResource("data-file-ignore-field.xml").getFile());
 			Customer customer = (Customer) xstream.fromXML(reader);
 			Assert.assertNotNull(customer);
 			System.out.println(customer);
diff --git a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectTest.java b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectTest.java
index cb7fc49b33..e24e54aea4 100644
--- a/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectTest.java
+++ b/xstream-xmlToObject/src/test/java/com/baeldung/pojo/test/XmlToObjectTest.java
@@ -1,6 +1,5 @@
 package com.baeldung.pojo.test;
 
-import java.io.File;
 import java.io.FileReader;
 import java.io.IOException;
 
@@ -19,13 +18,15 @@ public class XmlToObjectTest {
 
 	@Before
 	public void dataSetup() {
-		xstream = SimpleXstreamInitializer.getXstreamInstance();
+		SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+		xstream = simpleXstreamInitializer.getXstreamInstance();
 	}
 	
 	@Test
 	public void convertXmlToObjectFromFile() {
 		try {
-			FileReader reader = new FileReader(new File("data-file.xml"));
+			ClassLoader classLoader = getClass().getClassLoader();
+			FileReader reader = new FileReader(classLoader.getResource("data-file.xml").getFile());
 			Customer customer = (Customer) xstream.fromXML(reader);
 			Assert.assertNotNull(customer);
 			
diff --git a/xstream-xmlToObject/src/test/resources/data-file-alias-field-complex.xml b/xstream-xmlToObject/src/test/resources/data-file-alias-field-complex.xml
new file mode 100644
index 0000000000..2235aa7044
--- /dev/null
+++ b/xstream-xmlToObject/src/test/resources/data-file-alias-field-complex.xml
@@ -0,0 +1,15 @@
+<customer>
+  <firstName>XStream</firstName>
+  <lastName>Java</lastName>
+  <dob>1986-02-14 04:14:05.874 UTC</dob>
+  <contactDetailsList>
+    <ContactDetails contactType="Home">
+      <mobile>6673543265</mobile>
+      <landline>0124-2460311</landline>
+    </ContactDetails>
+    <ContactDetails contactType="Office">
+      <mobile>4676543565</mobile>
+      <landline>0120-223312</landline>
+    </ContactDetails>
+  </contactDetailsList>
+</customer>
\ No newline at end of file
diff --git a/xstream-xmlToObject/src/test/resources/data-file-alias-field.xml b/xstream-xmlToObject/src/test/resources/data-file-alias-field.xml
new file mode 100644
index 0000000000..9bc1d0990a
--- /dev/null
+++ b/xstream-xmlToObject/src/test/resources/data-file-alias-field.xml
@@ -0,0 +1,5 @@
+<customer>
+  <fn>XStream</fn>
+  <lastName>Java</lastName>
+  <dob>1986-02-14 03:46:16.381 UTC</dob>
+</customer>
\ No newline at end of file
diff --git a/xstream-xmlToObject/src/test/resources/data-file-alias-implicit-collection.xml b/xstream-xmlToObject/src/test/resources/data-file-alias-implicit-collection.xml
new file mode 100644
index 0000000000..d8731900b9
--- /dev/null
+++ b/xstream-xmlToObject/src/test/resources/data-file-alias-implicit-collection.xml
@@ -0,0 +1,13 @@
+<customer>
+  <firstName>XStream</firstName>
+  <lastName>Java</lastName>
+  <dob>1986-02-14 04:14:20.541 UTC</dob>
+  <ContactDetails contactType="Home">
+    <mobile>6673543265</mobile>
+    <landline>0124-2460311</landline>
+  </ContactDetails>
+  <ContactDetails contactType="Office">
+    <mobile>4676543565</mobile>
+    <landline>0120-223312</landline>
+  </ContactDetails>
+</customer>
\ No newline at end of file
diff --git a/xstream-xmlToObject/src/test/resources/data-file-alias.xml b/xstream-xmlToObject/src/test/resources/data-file-alias.xml
new file mode 100644
index 0000000000..964157f1dd
--- /dev/null
+++ b/xstream-xmlToObject/src/test/resources/data-file-alias.xml
@@ -0,0 +1,5 @@
+<customer>
+  <firstName>XStream</firstName>
+  <lastName>Java</lastName>
+  <dob>1986-02-14 03:46:16.381 UTC</dob>
+</customer>
\ No newline at end of file
diff --git a/xstream-xmlToObject/src/test/resources/data-file-ignore-field.xml b/xstream-xmlToObject/src/test/resources/data-file-ignore-field.xml
new file mode 100644
index 0000000000..865e93d4b4
--- /dev/null
+++ b/xstream-xmlToObject/src/test/resources/data-file-ignore-field.xml
@@ -0,0 +1,6 @@
+<customer>
+  <firstName>XStream</firstName>
+  <lastName>Java</lastName>
+  <dob>1986-02-14 04:14:20.541 UTC</dob>
+  <fullName>XStream Java</fullName>
+</customer>
\ No newline at end of file
diff --git a/xstream-xmlToObject/src/test/resources/data-file.xml b/xstream-xmlToObject/src/test/resources/data-file.xml
new file mode 100644
index 0000000000..59f2ea1cca
--- /dev/null
+++ b/xstream-xmlToObject/src/test/resources/data-file.xml
@@ -0,0 +1,5 @@
+<com.baeldung.pojo.Customer>
+  <firstName>XStream</firstName>
+  <lastName>Java</lastName>
+  <dob>1986-02-14 03:46:16.381 UTC</dob>
+</com.baeldung.pojo.Customer>
\ No newline at end of file