Merge remote-tracking branch 'refs/remotes/eugenp/master' into XStream-ObjectToJson

core-java-8/src/main/java/com/baeldung/unzip/UnzipFile.java

@@ -2,22 +2,21 @@ package com.baeldung.unzip;
 
 import java.io.File;
 import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
 
 public class UnzipFile {
-    public static void main(String[] args) throws FileNotFoundException, IOException {
-        String fileZip = "/opt/zipped/cities.zip";
-        byte[] buffer = new byte[1024];
-        ZipInputStream zis = new ZipInputStream(new FileInputStream(fileZip));
+    public static void main(final String[] args) throws IOException {
+        final String fileZip = "src/main/resources/compressed.zip";
+        final byte[] buffer = new byte[1024];
+        final ZipInputStream zis = new ZipInputStream(new FileInputStream(fileZip));
         ZipEntry zipEntry = zis.getNextEntry();
         while(zipEntry != null){
-            String fileName = zipEntry.getName();
-            File newFile = new File("/opt/unzipped/" + fileName);
-            FileOutputStream fos = new FileOutputStream(newFile);             
+            final String fileName = zipEntry.getName();
+            final File newFile = new File("src/main/resources/unzipTest/" + fileName);
+            final FileOutputStream fos = new FileOutputStream(newFile);
             int len;
             while ((len = zis.read(buffer)) > 0) {
                 fos.write(buffer, 0, len);

core-java-8/src/main/java/com/baeldung/zip/ZipDirectory.java

@@ -0,0 +1,43 @@
+package com.baeldung.zip;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
+
+public class ZipDirectory {
+    public static void main(final String[] args) throws IOException {
+        final String sourceFile = "src/main/resources/zipTest";
+        final FileOutputStream fos = new FileOutputStream("src/main/resources/dirCompressed.zip");
+        final ZipOutputStream zipOut = new ZipOutputStream(fos);
+        final File fileToZip = new File(sourceFile);
+
+        zipFile(fileToZip, fileToZip.getName(), zipOut);
+        zipOut.close();
+        fos.close();
+    }
+
+    private static void zipFile(final File fileToZip, final String fileName, final ZipOutputStream zipOut) throws IOException {
+        if (fileToZip.isHidden()) {
+            return;
+        }
+        if (fileToZip.isDirectory()) {
+            final File[] children = fileToZip.listFiles();
+            for (final File childFile : children) {
+                zipFile(childFile, fileName + "/" + childFile.getName(), zipOut);
+            }
+            return;
+        }
+        final FileInputStream fis = new FileInputStream(fileToZip);
+        final ZipEntry zipEntry = new ZipEntry(fileName);
+        zipOut.putNextEntry(zipEntry);
+        final byte[] bytes = new byte[1024];
+        int length;
+        while ((length = fis.read(bytes)) >= 0) {
+            zipOut.write(bytes, 0, length);
+        }
+        fis.close();
+    }
+}

core-java-8/src/main/java/com/baeldung/zip/ZipFile.java

@@ -2,22 +2,21 @@ package com.baeldung.zip;
 
 import java.io.File;
 import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
 public class ZipFile {
-    public static void main(String[] args) throws FileNotFoundException, IOException {
-        String sourceFile = "/opt/photos/photo.png";
-        FileOutputStream fos = new FileOutputStream("/opt/zipped/cities.zip");		
-        ZipOutputStream zipOut = new ZipOutputStream(fos);
-        File fileToZip = new File(sourceFile);
-        FileInputStream fis = new FileInputStream(fileToZip);
-        ZipEntry zipEntry = new ZipEntry(fileToZip.getName());
+    public static void main(final String[] args) throws IOException {
+        final String sourceFile = "src/main/resources/zipTest/test1.txt";
+        final FileOutputStream fos = new FileOutputStream("src/main/resources/compressed.zip");
+        final ZipOutputStream zipOut = new ZipOutputStream(fos);
+        final File fileToZip = new File(sourceFile);
+        final FileInputStream fis = new FileInputStream(fileToZip);
+        final ZipEntry zipEntry = new ZipEntry(fileToZip.getName());
         zipOut.putNextEntry(zipEntry);
-        byte[] bytes = new byte[1024];
+        final byte[] bytes = new byte[1024];
         int length;
         while((length = fis.read(bytes)) >= 0) {
             zipOut.write(bytes, 0, length);

core-java-8/src/main/java/com/baeldung/zip/ZipMultipleFiles.java

@@ -0,0 +1,33 @@
+package com.baeldung.zip;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
+
+public class ZipMultipleFiles {
+    public static void main(final String[] args) throws IOException {
+        final List<String> srcFiles = Arrays.asList("src/main/resources/zipTest/test1.txt", "src/main/resources/zipTest/test2.txt");
+        final FileOutputStream fos = new FileOutputStream("src/main/resources/multiCompressed.zip");
+        final ZipOutputStream zipOut = new ZipOutputStream(fos);
+        for (final String srcFile : srcFiles) {
+            final File fileToZip = new File(srcFile);
+            final FileInputStream fis = new FileInputStream(fileToZip);
+            final ZipEntry zipEntry = new ZipEntry(fileToZip.getName());
+            zipOut.putNextEntry(zipEntry);
+
+            final byte[] bytes = new byte[1024];
+            int length;
+            while((length = fis.read(bytes)) >= 0) {
+                zipOut.write(bytes, 0, length);
+            }
+            fis.close();
+        }
+        zipOut.close();
+        fos.close();
+    }
+}

core-java-8/src/main/resources/unzipTest/test1.txt

@@ -0,0 +1 @@
+Hello World!

core-java-8/src/main/resources/zipTest/test1.txt

@@ -0,0 +1 @@
+Hello World!

core-java-8/src/main/resources/zipTest/test2.txt

@@ -0,0 +1 @@
+My Name is John

core-java-8/src/main/resources/zipTest/testFolder/test3.txt

@@ -0,0 +1 @@
+My Name is Tom

core-java-8/src/main/resources/zipTest/testFolder/test4.txt

@@ -0,0 +1 @@
+My Name is Jane

core-java/src/test/java/org/baeldung/java/io/JavaXToWriterUnitTest.java

@@ -1,5 +1,7 @@
 package org.baeldung.java.io;
 
+import static org.junit.Assert.assertEquals;
+
 import java.io.IOException;
 import java.io.StringWriter;
 import java.io.Writer;
@@ -23,6 +25,8 @@ public class JavaXToWriterUnitTest {
         final Writer targetWriter = new StringWriter().append(new String(initialArray));
 
         targetWriter.close();
+
+        assertEquals("With Java", targetWriter.toString());
     }
 
     @Test
@@ -40,6 +44,8 @@ public class JavaXToWriterUnitTest {
         charSink.write(buffer);
 
         stringWriter.close();
+
+        assertEquals("With Guava", stringWriter.toString());
     }
 
     @Test
@@ -48,6 +54,8 @@ public class JavaXToWriterUnitTest {
         final Writer targetWriter = new StringBuilderWriter(new StringBuilder(new String(initialArray)));
 
         targetWriter.close();
+
+        assertEquals("With Commons IO", targetWriter.toString());
     }
 
 }

spring-mvc-java/pom.xml

@@ -57,6 +57,13 @@
             <artifactId>slf4j-log4j12</artifactId>
             <version>${org.slf4j.version}</version>
         </dependency>
+        <!-- common -->
+        <dependency>
+			<groupId>commons-fileupload</groupId>
+			<artifactId>commons-fileupload</artifactId>
+			<version>1.3.1</version>
+		</dependency>
+		
         <!-- test scoped -->
         <dependency>
             <groupId>junit</groupId>

spring-mvc-java/src/main/java/com/baeldung/aop/LoggingAspect.java

@@ -1,4 +1,4 @@
-package org.baeldung.aop;
+package com.baeldung.aop;
 
 import org.aspectj.lang.JoinPoint;
 import org.aspectj.lang.annotation.Aspect;
@@ -27,11 +27,11 @@ public class LoggingAspect {
     public void repositoryMethods() {
     }
 
-    @Pointcut("@annotation(org.baeldung.aop.annotations.Loggable)")
+    @Pointcut("@annotation(com.baeldung.aop.annotations.Loggable)")
     public void loggableMethods() {
     }
 
-    @Pointcut("@args(org.baeldung.aop.annotations.Entity)")
+    @Pointcut("@args(com.baeldung.aop.annotations.Entity)")
     public void methodsAcceptingEntities() {
     }
 

spring-mvc-java/src/main/java/com/baeldung/aop/PerformanceAspect.java

@@ -1,4 +1,4 @@
-package org.baeldung.aop;
+package com.baeldung.aop;
 
 import org.aspectj.lang.ProceedingJoinPoint;
 import org.aspectj.lang.annotation.Around;

spring-mvc-java/src/main/java/com/baeldung/aop/PublishingAspect.java

@@ -1,10 +1,10 @@
-package org.baeldung.aop;
+package com.baeldung.aop;
 
+import com.baeldung.events.FooCreationEvent;
 import org.aspectj.lang.JoinPoint;
 import org.aspectj.lang.annotation.AfterReturning;
 import org.aspectj.lang.annotation.Aspect;
 import org.aspectj.lang.annotation.Pointcut;
-import org.baeldung.events.FooCreationEvent;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.stereotype.Component;

spring-mvc-java/src/main/java/com/baeldung/aop/annotations/Entity.java

@@ -1,4 +1,4 @@
-package org.baeldung.aop.annotations;
+package com.baeldung.aop.annotations;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;

spring-mvc-java/src/main/java/com/baeldung/aop/annotations/Loggable.java

@@ -1,4 +1,4 @@
-package org.baeldung.aop.annotations;
+package com.baeldung.aop.annotations;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;

spring-mvc-java/src/main/java/com/baeldung/dao/FooDao.java

@@ -1,7 +1,7 @@
-package org.baeldung.dao;
+package com.baeldung.dao;
 
-import org.baeldung.aop.annotations.Loggable;
-import org.baeldung.model.Foo;
+import com.baeldung.aop.annotations.Loggable;
+import com.baeldung.model.Foo;
 import org.springframework.stereotype.Repository;
 
 @Repository

spring-mvc-java/src/main/java/com/baeldung/dialect/CustomDialect.java

@@ -1,9 +1,9 @@
-package org.baeldung.dialect;
+package com.baeldung.dialect;
 
 import java.util.HashSet;
 import java.util.Set;
 
-import org.baeldung.processor.NameProcessor;
+import com.baeldung.processor.NameProcessor;
 import org.thymeleaf.dialect.AbstractDialect;
 import org.thymeleaf.processor.IProcessor;
 

spring-mvc-java/src/main/java/com/baeldung/events/FooCreationEvent.java

@@ -1,4 +1,4 @@
-package org.baeldung.events;
+package com.baeldung.events;
 
 import org.springframework.context.ApplicationEvent;
 

spring-mvc-java/src/main/java/com/baeldung/events/FooCreationEventListener.java

@@ -1,4 +1,4 @@
-package org.baeldung.events;
+package com.baeldung.events;
 
 import org.springframework.context.ApplicationListener;
 import org.springframework.stereotype.Component;

spring-mvc-java/src/main/java/com/baeldung/model/Employee.java

@@ -1,4 +1,4 @@
-package org.baeldung.model;
+package com.baeldung.model;
 
 import javax.xml.bind.annotation.XmlRootElement;
 

spring-mvc-java/src/main/java/com/baeldung/model/Foo.java

@@ -1,6 +1,6 @@
-package org.baeldung.model;
+package com.baeldung.model;
 
-import org.baeldung.aop.annotations.Entity;
+import com.baeldung.aop.annotations.Entity;
 
 @Entity
 public class Foo {

spring-mvc-java/src/main/java/com/baeldung/model/User.java

@@ -1,4 +1,4 @@
-package org.baeldung.model;
+package com.baeldung.model;
 
 public class User {
     private String firstname;

spring-mvc-java/src/main/java/com/baeldung/processor/NameProcessor.java

@@ -1,4 +1,4 @@
-package org.baeldung.processor;
+package com.baeldung.processor;
 
 import org.thymeleaf.Arguments;
 import org.thymeleaf.dom.Element;

spring-mvc-java/src/main/java/com/baeldung/spring/web/config/ClientWebConfig.java

@@ -0,0 +1,93 @@
+package com.baeldung.spring.web.config;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import com.baeldung.dialect.CustomDialect;
+import org.springframework.context.MessageSource;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Description;
+import org.springframework.context.support.ResourceBundleMessageSource;
+import org.springframework.web.servlet.ViewResolver;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
+import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
+import org.springframework.web.servlet.view.InternalResourceViewResolver;
+import org.springframework.web.servlet.view.JstlView;
+import org.thymeleaf.dialect.IDialect;
+import org.thymeleaf.spring4.SpringTemplateEngine;
+import org.thymeleaf.spring4.view.ThymeleafViewResolver;
+import org.thymeleaf.templateresolver.ServletContextTemplateResolver;
+
+@EnableWebMvc
+@Configuration
+public class ClientWebConfig extends WebMvcConfigurerAdapter {
+
+	public ClientWebConfig() {
+		super();
+	}
+
+	// API
+
+	@Override
+	public void addViewControllers(final ViewControllerRegistry registry) {
+		super.addViewControllers(registry);
+
+		registry.addViewController("/sample.html");
+	}
+
+	@Bean
+	public ViewResolver thymeleafViewResolver() {
+		final ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
+		viewResolver.setTemplateEngine(templateEngine());
+		viewResolver.setOrder(1);
+		return viewResolver;
+	}
+
+	@Bean
+	public ViewResolver viewResolver() {
+		final InternalResourceViewResolver bean = new InternalResourceViewResolver();
+		bean.setViewClass(JstlView.class);
+		bean.setPrefix("/WEB-INF/view/");
+		bean.setSuffix(".jsp");
+		bean.setOrder(0);
+		return bean;
+	}
+
+	@Bean
+	@Description("Thymeleaf template resolver serving HTML 5")
+	public ServletContextTemplateResolver templateResolver() {
+		final ServletContextTemplateResolver templateResolver = new ServletContextTemplateResolver();
+		templateResolver.setPrefix("/WEB-INF/templates/");
+		templateResolver.setSuffix(".html");
+		templateResolver.setTemplateMode("HTML5");
+		return templateResolver;
+	}
+
+	@Bean
+	@Description("Thymeleaf template engine with Spring integration")
+	public SpringTemplateEngine templateEngine() {
+		final SpringTemplateEngine templateEngine = new SpringTemplateEngine();
+		templateEngine.setTemplateResolver(templateResolver());
+		final Set<IDialect> dialects = new HashSet<>();
+		dialects.add(new CustomDialect());
+		templateEngine.setAdditionalDialects(dialects);
+		return templateEngine;
+	}
+
+	@Bean
+	@Description("Spring message resolver")
+	public MessageSource messageSource() {
+		final ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
+		messageSource.setBasename("messages");
+		return messageSource;
+	}
+
+	@Override
+	public void addResourceHandlers(final ResourceHandlerRegistry registry) {
+		registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
+	}
+
+}

spring-mvc-java/src/main/java/com/baeldung/spring/web/config/ContentManagementWebConfig.java

@@ -1,4 +1,4 @@
-package org.baeldung.spring.web.config;
+package com.baeldung.spring.web.config;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;

spring-mvc-java/src/main/java/com/baeldung/spring/web/config/MainWebAppInitializer.java

@@ -0,0 +1,50 @@
+package com.baeldung.spring.web.config;
+
+import java.util.Set;
+
+import javax.servlet.ServletContext;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRegistration;
+
+import org.springframework.web.WebApplicationInitializer;
+import org.springframework.web.context.ContextLoaderListener;
+import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
+import org.springframework.web.context.support.GenericWebApplicationContext;
+import org.springframework.web.servlet.DispatcherServlet;
+
+public class MainWebAppInitializer implements WebApplicationInitializer {
+
+	private static final String TMP_FOLDER = "C:/Users/ivan/Desktop/tmp";
+	private static final int MAX_UPLOAD_SIZE = 5 * 1024 * 1024; // 5 MB
+
+	/**
+	 * Register and configure all Servlet container components necessary to power the web application.
+	 */
+	@Override
+	public void onStartup(final ServletContext sc) throws ServletException {
+
+		// Create the 'root' Spring application context
+		final AnnotationConfigWebApplicationContext root = new AnnotationConfigWebApplicationContext();
+		root.scan("com.baeldung.spring.web.config");
+		// root.getEnvironment().setDefaultProfiles("embedded");
+
+		// Manages the lifecycle of the root application context
+		sc.addListener(new ContextLoaderListener(root));
+
+		// Handles requests into the application
+		final ServletRegistration.Dynamic appServlet = sc.addServlet("mvc", new DispatcherServlet(new GenericWebApplicationContext()));
+		appServlet.setLoadOnStartup(1);
+
+		// final MultipartConfigElement multipartConfigElement = new
+		// MultipartConfigElement(TMP_FOLDER, MAX_UPLOAD_SIZE,
+		// MAX_UPLOAD_SIZE * 2, MAX_UPLOAD_SIZE / 2);
+		//
+		// appServlet.setMultipartConfig(multipartConfigElement);
+
+		final Set<String> mappingConflicts = appServlet.addMapping("/");
+		if (!mappingConflicts.isEmpty()) {
+			throw new IllegalStateException("'appServlet' could not be mapped to '/' due " + "to an existing mapping. This is a known issue under Tomcat versions " + "<= 7.0.14; see https://issues.apache.org/bugzilla/show_bug.cgi?id=51278");
+		}
+	}
+
+}

spring-mvc-java/src/main/java/com/baeldung/spring/web/config/WebConfig.java

@@ -1,9 +1,10 @@
-package org.baeldung.spring.web.config;
+package com.baeldung.spring.web.config;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.io.ClassPathResource;
+import org.springframework.web.multipart.commons.CommonsMultipartResolver;
 import org.springframework.web.servlet.ViewResolver;
 import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
@@ -15,14 +16,26 @@ import org.springframework.web.servlet.view.XmlViewResolver;
 
 @Configuration
 @EnableWebMvc
-@ComponentScan("org.baeldung.web")
+@ComponentScan("com.baeldung.web")
 public class WebConfig extends WebMvcConfigurerAdapter {
 
     public WebConfig() {
         super();
     }
 
-    //
+	// @Bean
+	// public StandardServletMultipartResolver multipartResolver() {
+	// return new StandardServletMultipartResolver();
+	// }
+
+	@Bean(name = "multipartResolver")
+	public CommonsMultipartResolver multipartResolver() {
+
+		final CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
+		multipartResolver.setMaxUploadSize(100000);
+
+		return multipartResolver;
+	}
 
     @Override
     public void addViewControllers(final ViewControllerRegistry registry) {

spring-mvc-java/src/main/java/com/baeldung/web/BeanA.java

@@ -1,4 +1,4 @@
-package org.baeldung.web;
+package com.baeldung.web;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;

spring-mvc-java/src/main/java/com/baeldung/web/BeanB.java

@@ -1,4 +1,4 @@
-package org.baeldung.web;
+package com.baeldung.web;
 
 import org.springframework.stereotype.Component;
 

spring-mvc-java/src/main/java/com/baeldung/web/controller/EmployeeController.java

@@ -1,9 +1,9 @@
-package org.baeldung.web.controller;
+package com.baeldung.web.controller;
 
 import java.util.HashMap;
 import java.util.Map;
 
-import org.baeldung.model.Employee;
+import com.baeldung.model.Employee;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.ModelMap;
 import org.springframework.validation.BindingResult;

spring-mvc-java/src/main/java/com/baeldung/web/controller/FileUploadController.java

@@ -0,0 +1,32 @@
+package com.baeldung.web.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.ModelMap;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.multipart.MultipartFile;
+
+@Controller
+public class FileUploadController {
+
+	@RequestMapping(value = "/fileUpload", method = RequestMethod.GET)
+	public String displayForm() {
+
+		return "fileUploadForm";
+	}
+
+	@RequestMapping(value = "/uploadFile", method = RequestMethod.POST)
+	public String submit(@RequestParam("file") final MultipartFile file, final ModelMap modelMap) {
+
+		modelMap.addAttribute("file", file);
+		return "fileUploadView";
+	}
+
+	@RequestMapping(value = "/uploadMultiFile", method = RequestMethod.POST)
+	public String submit(@RequestParam("files") final MultipartFile[] files, final ModelMap modelMap) {
+
+		modelMap.addAttribute("files", files);
+		return "fileUploadView";
+	}
+}

spring-mvc-java/src/main/java/com/baeldung/web/controller/UserController.java

@@ -1,6 +1,6 @@
-package org.baeldung.web.controller;
+package com.baeldung.web.controller;
 
-import org.baeldung.model.User;
+import com.baeldung.model.User;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.ModelAttribute;

spring-mvc-java/src/main/java/org/baeldung/spring/web/config/ClientWebConfig.java

@@ -1,93 +0,0 @@
-package org.baeldung.spring.web.config;
-
-import java.util.HashSet;
-import java.util.Set;
-
-import org.baeldung.dialect.CustomDialect;
-import org.springframework.context.MessageSource;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.Description;
-import org.springframework.context.support.ResourceBundleMessageSource;
-import org.springframework.web.servlet.ViewResolver;
-import org.springframework.web.servlet.config.annotation.EnableWebMvc;
-import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
-import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
-import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
-import org.springframework.web.servlet.view.InternalResourceViewResolver;
-import org.springframework.web.servlet.view.JstlView;
-import org.thymeleaf.dialect.IDialect;
-import org.thymeleaf.spring4.SpringTemplateEngine;
-import org.thymeleaf.spring4.view.ThymeleafViewResolver;
-import org.thymeleaf.templateresolver.ServletContextTemplateResolver;
-
-@EnableWebMvc
-@Configuration
-public class ClientWebConfig extends WebMvcConfigurerAdapter {
-
-    public ClientWebConfig() {
-        super();
-    }
-
-    // API
-
-    @Override
-    public void addViewControllers(final ViewControllerRegistry registry) {
-        super.addViewControllers(registry);
-
-        registry.addViewController("/sample.html");
-    }
-
-    @Bean
-    public ViewResolver thymeleafViewResolver() {
-        final ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
-        viewResolver.setTemplateEngine(templateEngine());
-        viewResolver.setOrder(1);
-        return viewResolver;
-    }
-
-    @Bean
-    public ViewResolver viewResolver() {
-        final InternalResourceViewResolver bean = new InternalResourceViewResolver();
-        bean.setViewClass(JstlView.class);
-        bean.setPrefix("/WEB-INF/view/");
-        bean.setSuffix(".jsp");
-        bean.setOrder(0);
-        return bean;
-    }
-
-    @Bean
-    @Description("Thymeleaf template resolver serving HTML 5")
-    public ServletContextTemplateResolver templateResolver() {
-        final ServletContextTemplateResolver templateResolver = new ServletContextTemplateResolver();
-        templateResolver.setPrefix("/WEB-INF/templates/");
-        templateResolver.setSuffix(".html");
-        templateResolver.setTemplateMode("HTML5");
-        return templateResolver;
-    }
-
-    @Bean
-    @Description("Thymeleaf template engine with Spring integration")
-    public SpringTemplateEngine templateEngine() {
-        final SpringTemplateEngine templateEngine = new SpringTemplateEngine();
-        templateEngine.setTemplateResolver(templateResolver());
-        final Set<IDialect> dialects = new HashSet<>();
-        dialects.add(new CustomDialect());
-        templateEngine.setAdditionalDialects(dialects);
-        return templateEngine;
-    }
-
-    @Bean
-    @Description("Spring message resolver")
-    public MessageSource messageSource() {
-        final ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
-        messageSource.setBasename("messages");
-        return messageSource;
-    }
-
-    @Override
-    public void addResourceHandlers(final ResourceHandlerRegistry registry) {
-        registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
-    }
-
-}

spring-mvc-java/src/main/java/org/baeldung/spring/web/config/MainWebAppInitializer.java

@@ -1,41 +0,0 @@
-package org.baeldung.spring.web.config;
-
-import java.util.Set;
-
-import javax.servlet.ServletContext;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRegistration;
-
-import org.springframework.web.WebApplicationInitializer;
-import org.springframework.web.context.ContextLoaderListener;
-import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
-import org.springframework.web.context.support.GenericWebApplicationContext;
-import org.springframework.web.servlet.DispatcherServlet;
-
-public class MainWebAppInitializer implements WebApplicationInitializer {
-
-    /**
-     * Register and configure all Servlet container components necessary to power the web application.
-     */
-    @Override
-    public void onStartup(final ServletContext sc) throws ServletException {
-        System.out.println("MainWebAppInitializer.onStartup()");
-
-        // Create the 'root' Spring application context
-        final AnnotationConfigWebApplicationContext root = new AnnotationConfigWebApplicationContext();
-        root.scan("org.baeldung.spring.web.config");
-        // root.getEnvironment().setDefaultProfiles("embedded");
-
-        // Manages the lifecycle of the root application context
-        sc.addListener(new ContextLoaderListener(root));
-
-        // Handles requests into the application
-        final ServletRegistration.Dynamic appServlet = sc.addServlet("mvc", new DispatcherServlet(new GenericWebApplicationContext()));
-        appServlet.setLoadOnStartup(1);
-        final Set<String> mappingConflicts = appServlet.addMapping("/");
-        if (!mappingConflicts.isEmpty()) {
-            throw new IllegalStateException("'appServlet' could not be mapped to '/' due " + "to an existing mapping. This is a known issue under Tomcat versions " + "<= 7.0.14; see https://issues.apache.org/bugzilla/show_bug.cgi?id=51278");
-        }
-    }
-
-}

spring-mvc-java/src/main/resources/com/baeldung/aop/beans.xml

@@ -7,8 +7,8 @@
         http://www.springframework.org/schema/aop
         http://www.springframework.org/schema/aop/spring-aop-4.2.xsd">
 
-    <bean id="perfomanceMeter" class="org.baeldung.aop.PerformanceAspect"/>
-    <bean id="fooDao" class="org.baeldung.dao.FooDao"/>
+    <bean id="perfomanceMeter" class="com.baeldung.aop.PerformanceAspect"/>
+    <bean id="fooDao" class="com.baeldung.dao.FooDao"/>
 
     <aop:config>
         <aop:pointcut id="anyDaoMethod" expression="@target(org.springframework.stereotype.Repository)"/>

spring-mvc-java/src/main/webapp/WEB-INF/view/fileUploadForm.jsp

@@ -0,0 +1,55 @@
+<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
+<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+		<title>File Upload Example</title>
+	</head>
+	
+	<body>
+	
+		<h3>Enter The File to Upload (Single file)</h3>
+	
+		<form:form method="POST" action="/spring-mvc-java/uploadFile" enctype="multipart/form-data">
+			
+			<table>
+				<tr>
+					<td>Select a file to upload</td>
+					<td><input type="file" name="file" /></td>
+				</tr>
+				<tr>
+					<td><input type="submit" value="Submit" /></td>
+				</tr>
+			</table>
+			
+		</form:form>
+		
+		<br /> 
+		
+		<h3>Enter The Files to Upload (Multiple files)</h3>
+		
+		<form:form method="POST" action="/spring-mvc-java/uploadMultiFile" enctype="multipart/form-data">
+			
+			<table>
+				<tr>
+					<td>Select a file to upload</td>
+					<td><input type="file" name="files" /></td>
+				</tr>
+				<tr>
+					<td>Select a file to upload</td>
+					<td><input type="file" name="files" /></td>
+				</tr>
+				<tr>
+					<td>Select a file to upload</td>
+					<td><input type="file" name="files" /></td>
+				</tr>
+				<tr>
+					<td><input type="submit" value="Submit" /></td>
+				</tr>
+			</table>
+			
+		</form:form>
+	
+	</body>
+
+</html>

spring-mvc-java/src/main/webapp/WEB-INF/view/fileUploadView.jsp

@@ -0,0 +1,36 @@
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+
+<html>
+	<head>
+		<title>Spring MVC File Upload</title>
+	</head>
+	<body>
+		
+		<h2>Submitted File (Single)</h2>
+		<table>
+			<tr>
+				<td>OriginalFileName :</td>
+				<td>${file.originalFilename}</td>
+			</tr>
+			<tr>
+				<td>Type :</td>
+				<td>${file.contentType}</td>
+			</tr>
+		</table>
+		<br />
+		
+		<h2>Submitted Files (Multiple)</h2>
+		<table>
+			<c:forEach items="${files}" var="file">	
+				<tr>
+					<td>OriginalFileName :</td>
+					<td>${file.originalFilename}</td>
+				</tr>
+				<tr>
+					<td>Type :</td>
+					<td>${file.contentType}</td>
+				</tr>
+			</c:forEach>
+		</table>
+	</body>
+</html>

spring-mvc-java/src/main/webapp/WEB-INF/web_old.xml

@@ -16,7 +16,7 @@
     </context-param>
     <context-param>
         <param-name>contextConfigLocation</param-name>
-        <param-value>org.baeldung.spring.web.config</param-value>
+        <param-value>com.baeldung.spring.web.config</param-value>
     </context-param>
 
     <listener>

spring-mvc-java/src/test/java/com/baeldung/aop/AopLoggingTest.java

@@ -1,8 +1,8 @@
-package org.baeldung.aop;
+package com.baeldung.aop;
 
-import org.baeldung.config.TestConfig;
-import org.baeldung.dao.FooDao;
-import org.baeldung.model.Foo;
+import com.baeldung.config.TestConfig;
+import com.baeldung.dao.FooDao;
+import com.baeldung.model.Foo;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;

spring-mvc-java/src/test/java/com/baeldung/aop/AopPerformanceTest.java

@@ -1,7 +1,7 @@
-package org.baeldung.aop;
+package com.baeldung.aop;
 
-import org.baeldung.config.TestConfig;
-import org.baeldung.dao.FooDao;
+import com.baeldung.config.TestConfig;
+import com.baeldung.dao.FooDao;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;

spring-mvc-java/src/test/java/com/baeldung/aop/AopPublishingTest.java

@@ -1,9 +1,9 @@
-package org.baeldung.aop;
+package com.baeldung.aop;
 
-import org.baeldung.config.TestConfig;
-import org.baeldung.dao.FooDao;
-import org.baeldung.events.FooCreationEventListener;
-import org.baeldung.model.Foo;
+import com.baeldung.config.TestConfig;
+import com.baeldung.dao.FooDao;
+import com.baeldung.events.FooCreationEventListener;
+import com.baeldung.model.Foo;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;

spring-mvc-java/src/test/java/com/baeldung/aop/AopXmlConfigPerformanceTest.java

@@ -1,6 +1,6 @@
-package org.baeldung.aop;
+package com.baeldung.aop;
 
-import org.baeldung.dao.FooDao;
+import com.baeldung.dao.FooDao;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -21,7 +21,7 @@ import static org.junit.Assert.assertThat;
 import static org.junit.Assert.assertTrue;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration("/org/baeldung/aop/beans.xml")
+@ContextConfiguration("/com/baeldung/aop/beans.xml")
 public class AopXmlConfigPerformanceTest {
 
     @Before

spring-mvc-java/src/test/java/com/baeldung/config/TestConfig.java

@@ -1,11 +1,11 @@
-package org.baeldung.config;
+package com.baeldung.config;
 
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.EnableAspectJAutoProxy;
 
 @Configuration
-@ComponentScan(basePackages = { "org.baeldung.dao", "org.baeldung.aop", "org.baeldung.events" })
+@ComponentScan(basePackages = { "com.baeldung.dao", "com.baeldung.aop", "com.baeldung.events" })
 @EnableAspectJAutoProxy
 public class TestConfig {
 }

spring-mvc-xml/src/main/java/com/baeldung/spring/ClientWebConfigJava.java

@@ -1,6 +1,12 @@
 package com.baeldung.spring;
 
+import java.util.Locale;
+import java.util.ResourceBundle;
+
+import org.springframework.context.MessageSource;
 import org.springframework.context.annotation.Bean;
+import org.springframework.context.support.MessageSourceResourceBundle;
+import org.springframework.context.support.ResourceBundleMessageSource;
 import org.springframework.web.servlet.ViewResolver;
 import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
@@ -15,7 +21,20 @@ public class ClientWebConfigJava extends WebMvcConfigurerAdapter {
 		super();
 	}
 
-    // API
+	@Bean
+	public MessageSource messageSource() {
+
+		final ResourceBundleMessageSource ms = new ResourceBundleMessageSource();
+		ms.setBasenames("messages");
+		return ms;
+	}
+
+	@Bean
+	public ResourceBundle getBeanResourceBundle() {
+
+		final Locale locale = Locale.getDefault();
+		return new MessageSourceResourceBundle(messageSource(), locale);
+	}
 
 	@Override
 	public void addViewControllers(final ViewControllerRegistry registry) {

spring-mvc-xml/src/main/webapp/WEB-INF/view/personForm.jsp

@@ -24,7 +24,7 @@
 	
 		<h3>Welcome, Enter the Person Details</h3>
 	
-		<form:form method="POST" action="addPerson" modelAttribute="person">
+		<form:form method="POST" action="/spring-mvc-xml/addPerson" modelAttribute="person">
 			
 			<form:errors path="*" cssClass="errorbox" element="div" />
 			

spring-mvc-xml/src/main/webapp/WEB-INF/view/personView.jsp

@@ -61,6 +61,5 @@
 				<td>${person.notes}</td>
 			</tr>
 		</table>
-		
 	</body>
 </html>

spring-security-mvc-session/src/main/java/org/baeldung/spring/SecSecurityConfig.java

@@ -7,6 +7,7 @@ import org.springframework.security.config.annotation.authentication.builders.Au
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
+import org.springframework.security.config.http.SessionCreationPolicy;
 import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
 import org.springframework.security.web.session.HttpSessionEventPublisher;
 
@@ -49,7 +50,12 @@ public class SecSecurityConfig extends WebSecurityConfigurerAdapter {
         .and()
         .rememberMe().key("uniqueAndSecret").tokenValiditySeconds(86400)
         .and()
-        .sessionManagement().invalidSessionUrl("/invalidSession.html").maximumSessions(2).expiredUrl("/sessionExpired.html");
+        .sessionManagement()
+        .sessionFixation().migrateSession()
+        .sessionCreationPolicy(SessionCreationPolicy.IF_REQUIRED)
+        .invalidSessionUrl("/invalidSession.html")
+        .maximumSessions(2)
+        .expiredUrl("/sessionExpired.html");
 
         // @formatter:on
     }

xstream-introduction/.project

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-  <name>xstream-introduction</name>
-  <comment>An Introduction To XStream. 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>

xstream-introduction/src/main/java/com/baeldung/initializer/SimpleXstreamInitializer.java

@@ -1,19 +0,0 @@
-package com.baeldung.initializer;
-
-import com.thoughtworks.xstream.XStream;
-
-public class SimpleXstreamInitializer {
-
-	private static XStream xstreamInstance;
-
-	public static XStream getXstreamInstance() {
-		if (xstreamInstance == null) {
-			synchronized (SimpleXstreamInitializer.class) {
-				if (xstreamInstance == null) {
-					xstreamInstance = new XStream();
-				}
-			}
-		}
-		return xstreamInstance;
-	}
-}

xstream-introduction/src/main/java/com/baeldung/pojo/AddressDetails.java

@@ -1,40 +0,0 @@
-package com.baeldung.pojo;
-
-import java.util.List;
-
-import com.thoughtworks.xstream.annotations.XStreamAlias;
-
-@XStreamAlias("AddressDetails")
-public class AddressDetails {
-
-	private String address;
-
-	private String zipcode;
-
-	private List<ContactDetails> contactDetails;
-
-	public String getZipcode() {
-		return zipcode;
-	}
-
-	public void setZipcode(String zipcode) {
-		this.zipcode = zipcode;
-	}
-
-	public List<ContactDetails> getContactDetails() {
-		return contactDetails;
-	}
-
-	public void setContactDetails(List<ContactDetails> contactDetails) {
-		this.contactDetails = contactDetails;
-	}
-
-	public String getAddress() {
-		return address;
-	}
-
-	public void setAddress(String address) {
-		this.address = address;
-	}
-
-}

xstream-introduction/src/main/java/com/baeldung/pojo/ContactDetails.java

@@ -1,28 +0,0 @@
-package com.baeldung.pojo;
-
-import com.thoughtworks.xstream.annotations.XStreamAlias;
-
-@XStreamAlias("ContactDetails")
-public class ContactDetails {
-
-	private String mobile;
-
-	private String landline;
-
-	public String getMobile() {
-		return mobile;
-	}
-
-	public void setMobile(String mobile) {
-		this.mobile = mobile;
-	}
-
-	public String getLandline() {
-		return landline;
-	}
-
-	public void setLandline(String landline) {
-		this.landline = landline;
-	}
-
-}

xstream-introduction/src/main/java/com/baeldung/pojo/Customer.java

@@ -1,55 +0,0 @@
-package com.baeldung.pojo;
-
-import java.util.Date;
-import java.util.List;
-
-import com.thoughtworks.xstream.annotations.XStreamAlias;
-import com.thoughtworks.xstream.annotations.XStreamImplicit;
-import com.thoughtworks.xstream.annotations.XStreamOmitField;
-
-@XStreamAlias("customer")
-public class Customer {
-
-	//@XStreamOmitField
-	private String firstName;
-
-	private String lastName;
-
-	private Date dob;
-
-	@XStreamImplicit
-	private List<ContactDetails> contactDetailsList;
-
-	public String getFirstName() {
-		return firstName;
-	}
-
-	public void setFirstName(String firstName) {
-		this.firstName = firstName;
-	}
-
-	public String getLastName() {
-		return lastName;
-	}
-
-	public void setLastName(String lastName) {
-		this.lastName = lastName;
-	}
-
-	public Date getDob() {
-		return dob;
-	}
-
-	public void setDob(Date dob) {
-		this.dob = dob;
-	}
-
-	public List<ContactDetails> getContactDetailsList() {
-		return contactDetailsList;
-	}
-
-	public void setContactDetailsList(List<ContactDetails> contactDetailsList) {
-		this.contactDetailsList = contactDetailsList;
-	}
-
-}

xstream-introduction/src/main/java/com/baeldung/pojo/CustomerAddressDetails.java

@@ -1,50 +0,0 @@
-package com.baeldung.pojo;
-
-import java.util.List;
-
-import com.thoughtworks.xstream.annotations.XStreamAlias;
-
-@XStreamAlias("CustomerAddressDetails")
-public class CustomerAddressDetails {
-
-	private List<AddressDetails> addressDetails;
-	
-	private String firstName;
-
-	private String lastName;
-
-	private int age;
-
-	public String getFirstName() {
-		return firstName;
-	}
-
-	public void setFirstName(String firstName) {
-		this.firstName = firstName;
-	}
-
-	public String getLastName() {
-		return lastName;
-	}
-
-	public void setLastName(String lastName) {
-		this.lastName = lastName;
-	}
-
-	public int getAge() {
-		return age;
-	}
-
-	public void setAge(int age) {
-		this.age = age;
-	}
-
-
-	public List<AddressDetails> getAddressDetails() {
-		return addressDetails;
-	}
-
-	public void setAddressDetails(List<AddressDetails> addressDetails) {
-		this.addressDetails = addressDetails;
-	}
-}

xstream-introduction/src/main/java/com/baeldung/pojo/CustomerPortfolio.java

@@ -1,20 +0,0 @@
-package com.baeldung.pojo;
-
-import java.util.List;
-
-import com.thoughtworks.xstream.annotations.XStreamAlias;
-
-@XStreamAlias("CustomerPortfolio")
-public class CustomerPortfolio {
-
-	private List<CustomerAddressDetails> customerAddressDetailsList;
-
-	public List<CustomerAddressDetails> getCustomerAddressDetailsList() {
-		return customerAddressDetailsList;
-	}
-
-	public void setCustomerAddressDetailsList(List<CustomerAddressDetails> customerAddressDetailsList) {
-		this.customerAddressDetailsList = customerAddressDetailsList;
-	}
-
-}

xstream-introduction/src/main/java/com/baeldung/utility/MyDateConverter.java

@@ -1,40 +0,0 @@
-package com.baeldung.utility;
-
-import java.text.ParseException;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-import java.util.GregorianCalendar;
-
-import com.thoughtworks.xstream.converters.ConversionException;
-import com.thoughtworks.xstream.converters.Converter;
-import com.thoughtworks.xstream.converters.MarshallingContext;
-import com.thoughtworks.xstream.converters.UnmarshallingContext;
-import com.thoughtworks.xstream.io.HierarchicalStreamReader;
-import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
-
-public class MyDateConverter implements Converter {
-
-	private SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yyyy");
-
-	@Override
-	public boolean canConvert(Class clazz) {
-		return Date.class.isAssignableFrom(clazz);
-	}
-
-	@Override
-	public void marshal(Object value , HierarchicalStreamWriter writer , MarshallingContext arg2) {
-		Date date = (Date) value;
-		writer.setValue(formatter.format(date));
-	}
-
-	@Override
-	public Object unmarshal(HierarchicalStreamReader reader , UnmarshallingContext arg1) {
-		GregorianCalendar calendar = new GregorianCalendar();
-		try {
-			calendar.setTime(formatter.parse(reader.getValue()));
-		} catch (ParseException e) {
-			throw new ConversionException(e.getMessage() , e);
-		}
-		return calendar;
-	}
-}

xstream-introduction/src/main/java/com/baeldung/utility/MySingleValueConverter.java

@@ -1,28 +0,0 @@
-package com.baeldung.utility;
-
-import java.text.SimpleDateFormat;
-import java.util.Date;
-
-import com.baeldung.pojo.Customer;
-import com.thoughtworks.xstream.converters.SingleValueConverter;
-
-public class MySingleValueConverter implements SingleValueConverter {
-
-	@Override
-	public boolean canConvert(Class clazz) {
-		return Customer.class.isAssignableFrom(clazz);
-	}
-
-	@Override
-	public Object fromString(String arg0) {
-		return null;
-	}
-
-	@Override
-	public String toString(Object obj) {
-		SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yyyy");
-		Date date = ((Customer) obj).getDob();
-		return ((Customer) obj).getFirstName() + "," + ((Customer) obj).getLastName() + "," + formatter.format(date);
-	}
-
-}

xstream-introduction/src/main/java/com/baeldung/utility/SimpleDataGeneration.java

@@ -1,37 +0,0 @@
-package com.baeldung.utility;
-
-import java.util.ArrayList;
-import java.util.Calendar;
-import java.util.List;
-
-import com.baeldung.pojo.ContactDetails;
-import com.baeldung.pojo.Customer;
-
-public class SimpleDataGeneration {
-
-	public static Customer generateData() {
-		Customer customer = new Customer();
-		Calendar cal = Calendar.getInstance();
-		cal.set(1986 , 01 , 14);
-		customer.setDob(cal.getTime());
-		customer.setFirstName("XStream");
-		customer.setLastName("Java");
-
-		List<ContactDetails> contactDetailsList = new ArrayList<ContactDetails>();
-
-		ContactDetails contactDetails1 = new ContactDetails();
-		contactDetails1.setLandline("0124-2460311");
-		contactDetails1.setMobile("6673543265");
-
-		ContactDetails contactDetails2 = new ContactDetails();
-		contactDetails2.setLandline("0120-223312");
-		contactDetails2.setMobile("4676543565");
-
-		contactDetailsList.add(contactDetails1);
-		contactDetailsList.add(contactDetails2);
-
-		customer.setContactDetailsList(contactDetailsList);
-		return customer;
-	}
-
-}

xstream-introduction/src/test/java/com/baeldung/utility/XStreamSimpleXmlTest.java

@@ -1,62 +0,0 @@
-package com.baeldung.utility;
-
-import org.junit.Assert;
-import org.junit.Before;
-import org.junit.Test;
-
-import com.baeldung.initializer.SimpleXstreamInitializer;
-import com.baeldung.pojo.AddressDetails;
-import com.baeldung.pojo.ContactDetails;
-import com.baeldung.pojo.Customer;
-import com.baeldung.utility.SimpleDataGeneration;
-import com.thoughtworks.xstream.XStream;
-
-public class XStreamSimpleXmlTest {
-
-	private Customer customer = null;
-
-	private String dataXml = null;
-
-	private XStream xstream = null;
-
-	@Before
-	public void dataSetup() {
-		customer = SimpleDataGeneration.generateData();
-		xstream = SimpleXstreamInitializer.getXstreamInstance();
-		xstream.processAnnotations(Customer.class);
-		xstream.processAnnotations(AddressDetails.class);
-		xstream.processAnnotations(ContactDetails.class);
-		xstream.omitField(Customer.class , "lastName");
-		xstream.registerConverter(new MyDateConverter());
-		// xstream.registerConverter(new MySingleValueConverter());
-		xstream.aliasField("fn" , Customer.class , "firstName");
-
-		dataXml = xstream.toXML(customer);
-		System.out.println(dataXml);
-	}
-
-	@Test
-	public void testClassAliasedAnnotation() {
-		Assert.assertNotEquals(-1 , dataXml.indexOf("<customer>"));
-	}
-
-	@Test
-	public void testFieldAliasedAnnotation() {
-		Assert.assertNotEquals(-1 , dataXml.indexOf("<fn>"));
-	}
-
-	@Test
-	public void testImplicitCollection() {
-		Assert.assertEquals(-1 , dataXml.indexOf("contactDetailsList"));
-	}
-
-	@Test
-	public void testDateFieldFormating() {
-		Assert.assertEquals("14-02-1986" , dataXml.substring(dataXml.indexOf("<dob>") + 5 , dataXml.indexOf("</dob>")));
-	}
-
-	@Test
-	public void testOmitField() {
-		Assert.assertEquals(-1 , dataXml.indexOf("lastName"));
-	}
-}

xstream/pom.xml

@@ -27,4 +27,18 @@
 		</dependency>
 	</dependencies>
 
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>3.5.1</version>
+				<configuration>
+					<source>1.8</source>
+					<target>1.8</target>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
 </project>

xstream/src/main/java/com/baeldung/annotation/pojo/Customer.java

@@ -0,0 +1,46 @@
+package com.baeldung.annotation.pojo;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+
+import java.util.Date;
+
+@XStreamAlias("customer")
+public class Customer {
+
+    @XStreamAlias("fn")
+    private String firstName;
+
+    private String lastName;
+
+    private Date dob;
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public Date getDob() {
+        return dob;
+    }
+
+    public void setDob(Date dob) {
+        this.dob = dob;
+    }
+
+    @Override
+    public String toString() {
+        return "Customer [firstName=" + firstName + ", lastName=" + lastName
+                + ", dob=" + dob + "]";
+    }
+}

xstream/src/main/java/com/baeldung/annotation/pojo/CustomerOmitField.java

@@ -0,0 +1,50 @@
+package com.baeldung.annotation.pojo;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+import com.thoughtworks.xstream.annotations.XStreamOmitField;
+
+import java.util.Date;
+
+
+@XStreamAlias("customer")
+public class CustomerOmitField {
+
+    @XStreamOmitField
+    private String firstName;
+
+    private String lastName;
+
+    private Date dob;
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public Date getDob() {
+        return dob;
+    }
+
+    public void setDob(Date dob) {
+        this.dob = dob;
+    }
+
+    @Override
+    public String toString() {
+        return "CustomerOmitAnnotation [firstName=" + firstName + ", lastName="
+                + lastName + ", dob=" + dob + "]";
+    }
+
+
+}

xstream/src/main/java/com/baeldung/complex/pojo/ContactDetails.java

@@ -0,0 +1,46 @@
+package com.baeldung.complex.pojo;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+import com.thoughtworks.xstream.annotations.XStreamAsAttribute;
+
+@XStreamAlias("ContactDetails")
+public class ContactDetails {
+
+    private String mobile;
+
+    private String landline;
+
+    @XStreamAsAttribute
+    private String contactType;
+
+    public String getMobile() {
+        return mobile;
+    }
+
+    public void setMobile(String mobile) {
+        this.mobile = mobile;
+    }
+
+    public String getLandline() {
+        return landline;
+    }
+
+    public void setLandline(String landline) {
+        this.landline = landline;
+    }
+
+    public String getContactType() {
+        return contactType;
+    }
+
+    public void setContactType(String contactType) {
+        this.contactType = contactType;
+    }
+
+    @Override
+    public String toString() {
+        return "ContactDetails [mobile=" + mobile + ", landline=" + landline
+                + ", contactType=" + contactType + "]";
+    }
+
+}

xstream/src/main/java/com/baeldung/complex/pojo/Customer.java

@@ -0,0 +1,57 @@
+package com.baeldung.complex.pojo;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+
+import java.util.Date;
+import java.util.List;
+
+@XStreamAlias("customer")
+public class Customer {
+
+    private String firstName;
+
+    private String lastName;
+
+    private Date dob;
+
+    private List<ContactDetails> contactDetailsList;
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public Date getDob() {
+        return dob;
+    }
+
+    public void setDob(Date dob) {
+        this.dob = dob;
+    }
+
+    public List<ContactDetails> getContactDetailsList() {
+        return contactDetailsList;
+    }
+
+    public void setContactDetailsList(List<ContactDetails> contactDetailsList) {
+        this.contactDetailsList = contactDetailsList;
+    }
+
+    @Override
+    public String toString() {
+        return "Customer [firstName=" + firstName + ", lastName=" + lastName
+                + ", dob=" + dob + ", contactDetailsList=" + contactDetailsList
+                + "]";
+    }
+}

xstream/src/main/java/com/baeldung/implicit/collection/pojo/ContactDetails.java

@@ -0,0 +1,46 @@
+package com.baeldung.implicit.collection.pojo;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+import com.thoughtworks.xstream.annotations.XStreamAsAttribute;
+
+@XStreamAlias("ContactDetails")
+public class ContactDetails {
+
+    private String mobile;
+
+    private String landline;
+
+    @XStreamAsAttribute
+    private String contactType;
+
+    public String getMobile() {
+        return mobile;
+    }
+
+    public void setMobile(String mobile) {
+        this.mobile = mobile;
+    }
+
+    public String getLandline() {
+        return landline;
+    }
+
+    public void setLandline(String landline) {
+        this.landline = landline;
+    }
+
+    public String getContactType() {
+        return contactType;
+    }
+
+    public void setContactType(String contactType) {
+        this.contactType = contactType;
+    }
+
+    @Override
+    public String toString() {
+        return "ContactDetails [mobile=" + mobile + ", landline=" + landline
+                + ", contactType=" + contactType + "]";
+    }
+
+}

xstream/src/main/java/com/baeldung/implicit/collection/pojo/Customer.java

@@ -0,0 +1,59 @@
+package com.baeldung.implicit.collection.pojo;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+import com.thoughtworks.xstream.annotations.XStreamImplicit;
+
+import java.util.Date;
+import java.util.List;
+
+@XStreamAlias("customer")
+public class Customer {
+
+    private String firstName;
+
+    private String lastName;
+
+    private Date dob;
+
+    @XStreamImplicit
+    private List<ContactDetails> contactDetailsList;
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public Date getDob() {
+        return dob;
+    }
+
+    public void setDob(Date dob) {
+        this.dob = dob;
+    }
+
+    public List<ContactDetails> getContactDetailsList() {
+        return contactDetailsList;
+    }
+
+    public void setContactDetailsList(List<ContactDetails> contactDetailsList) {
+        this.contactDetailsList = contactDetailsList;
+    }
+
+    @Override
+    public String toString() {
+        return "Customer [firstName=" + firstName + ", lastName=" + lastName
+                + ", dob=" + dob + ", contactDetailsList=" + contactDetailsList
+                + "]";
+    }
+}

xstream/src/main/java/com/baeldung/initializer/SimpleXstreamInitializer.java

@@ -0,0 +1,19 @@
+package com.baeldung.initializer;
+
+import com.thoughtworks.xstream.XStream;
+
+public class SimpleXstreamInitializer {
+
+    private XStream xtreamInstance;
+
+    public XStream getXstreamInstance() {
+        if (xtreamInstance == null) {
+            synchronized (SimpleXstreamInitializer.class) {
+                if (xtreamInstance == null) {
+                    xtreamInstance = new XStream();
+                }
+            }
+        }
+        return xtreamInstance;
+    }
+}

xstream/src/main/java/com/baeldung/pojo/AddressDetails.java

@@ -0,0 +1,40 @@
+package com.baeldung.pojo;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+
+import java.util.List;
+
+@XStreamAlias("AddressDetails")
+public class AddressDetails {
+
+    private String address;
+
+    private String zipcode;
+
+    private List<ContactDetails> contactDetails;
+
+    public String getZipcode() {
+        return zipcode;
+    }
+
+    public void setZipcode(String zipcode) {
+        this.zipcode = zipcode;
+    }
+
+    public List<ContactDetails> getContactDetails() {
+        return contactDetails;
+    }
+
+    public void setContactDetails(List<ContactDetails> contactDetails) {
+        this.contactDetails = contactDetails;
+    }
+
+    public String getAddress() {
+        return address;
+    }
+
+    public void setAddress(String address) {
+        this.address = address;
+    }
+
+}

xstream/src/main/java/com/baeldung/pojo/ContactDetails.java

@@ -0,0 +1,28 @@
+package com.baeldung.pojo;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+
+@XStreamAlias("ContactDetails")
+public class ContactDetails {
+
+    private String mobile;
+
+    private String landline;
+
+    public String getMobile() {
+        return mobile;
+    }
+
+    public void setMobile(String mobile) {
+        this.mobile = mobile;
+    }
+
+    public String getLandline() {
+        return landline;
+    }
+
+    public void setLandline(String landline) {
+        this.landline = landline;
+    }
+
+}

xstream/src/main/java/com/baeldung/pojo/Customer.java

@@ -0,0 +1,57 @@
+package com.baeldung.pojo;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+import com.thoughtworks.xstream.annotations.XStreamImplicit;
+
+import java.util.Date;
+import java.util.List;
+
+@XStreamAlias("customer")
+public class Customer {
+
+    private String firstName;
+
+    private String lastName;
+
+    private Date dob;
+
+    @XStreamImplicit
+    private List<ContactDetails> contactDetailsList;
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public Date getDob() {
+        return dob;
+    }
+
+    public void setDob(Date dob) {
+        this.dob = dob;
+    }
+
+    public List<ContactDetails> getContactDetailsList() {
+        return contactDetailsList;
+    }
+
+    public void setContactDetailsList(List<ContactDetails> contactDetailsList) {
+        this.contactDetailsList = contactDetailsList;
+    }
+
+    @Override
+    public String toString() {
+        return "Customer [firstName=" + firstName + ", lastName=" + lastName + ", dob=" + dob + "]";
+    }
+}

xstream/src/main/java/com/baeldung/pojo/CustomerAddressDetails.java

@@ -0,0 +1,50 @@
+package com.baeldung.pojo;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+
+import java.util.List;
+
+@XStreamAlias("CustomerAddressDetails")
+public class CustomerAddressDetails {
+
+    private List<AddressDetails> addressDetails;
+
+    private String firstName;
+
+    private String lastName;
+
+    private int age;
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
+
+
+    public List<AddressDetails> getAddressDetails() {
+        return addressDetails;
+    }
+
+    public void setAddressDetails(List<AddressDetails> addressDetails) {
+        this.addressDetails = addressDetails;
+    }
+}

xstream/src/main/java/com/baeldung/pojo/CustomerPortfolio.java

@@ -0,0 +1,20 @@
+package com.baeldung.pojo;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+
+import java.util.List;
+
+@XStreamAlias("CustomerPortfolio")
+public class CustomerPortfolio {
+
+    private List<CustomerAddressDetails> customerAddressDetailsList;
+
+    public List<CustomerAddressDetails> getCustomerAddressDetailsList() {
+        return customerAddressDetailsList;
+    }
+
+    public void setCustomerAddressDetailsList(List<CustomerAddressDetails> customerAddressDetailsList) {
+        this.customerAddressDetailsList = customerAddressDetailsList;
+    }
+
+}

xstream/src/main/java/com/baeldung/utility/MyDateConverter.java

@@ -0,0 +1,40 @@
+package com.baeldung.utility;
+
+import com.thoughtworks.xstream.converters.ConversionException;
+import com.thoughtworks.xstream.converters.Converter;
+import com.thoughtworks.xstream.converters.MarshallingContext;
+import com.thoughtworks.xstream.converters.UnmarshallingContext;
+import com.thoughtworks.xstream.io.HierarchicalStreamReader;
+import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.GregorianCalendar;
+
+public class MyDateConverter implements Converter {
+
+    private SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yyyy");
+
+    @Override
+    public boolean canConvert(Class clazz) {
+        return Date.class.isAssignableFrom(clazz);
+    }
+
+    @Override
+    public void marshal(Object value, HierarchicalStreamWriter writer, MarshallingContext arg2) {
+        Date date = (Date) value;
+        writer.setValue(formatter.format(date));
+    }
+
+    @Override
+    public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext arg1) {
+        GregorianCalendar calendar = new GregorianCalendar();
+        try {
+            calendar.setTime(formatter.parse(reader.getValue()));
+        } catch (ParseException e) {
+            throw new ConversionException(e.getMessage(), e);
+        }
+        return calendar;
+    }
+}

xstream/src/main/java/com/baeldung/utility/MySingleValueConverter.java

@@ -0,0 +1,28 @@
+package com.baeldung.utility;
+
+import com.baeldung.pojo.Customer;
+import com.thoughtworks.xstream.converters.SingleValueConverter;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+public class MySingleValueConverter implements SingleValueConverter {
+
+    @Override
+    public boolean canConvert(Class clazz) {
+        return Customer.class.isAssignableFrom(clazz);
+    }
+
+    @Override
+    public Object fromString(String arg0) {
+        return null;
+    }
+
+    @Override
+    public String toString(Object obj) {
+        SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yyyy");
+        Date date = ((Customer) obj).getDob();
+        return ((Customer) obj).getFirstName() + "," + ((Customer) obj).getLastName() + "," + formatter.format(date);
+    }
+
+}

xstream/src/main/java/com/baeldung/utility/SimpleDataGeneration.java

@@ -0,0 +1,37 @@
+package com.baeldung.utility;
+
+import com.baeldung.pojo.ContactDetails;
+import com.baeldung.pojo.Customer;
+
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.List;
+
+public class SimpleDataGeneration {
+
+    public static Customer generateData() {
+        Customer customer = new Customer();
+        Calendar cal = Calendar.getInstance();
+        cal.set(1986, 01, 14);
+        customer.setDob(cal.getTime());
+        customer.setFirstName("XStream");
+        customer.setLastName("Java");
+
+        List<ContactDetails> contactDetailsList = new ArrayList<ContactDetails>();
+
+        ContactDetails contactDetails1 = new ContactDetails();
+        contactDetails1.setLandline("0124-2460311");
+        contactDetails1.setMobile("6673543265");
+
+        ContactDetails contactDetails2 = new ContactDetails();
+        contactDetails2.setLandline("0120-223312");
+        contactDetails2.setMobile("4676543565");
+
+        contactDetailsList.add(contactDetails1);
+        contactDetailsList.add(contactDetails2);
+
+        customer.setContactDetailsList(contactDetailsList);
+        return customer;
+    }
+
+}

xstream/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectAnnotationTest.java

@@ -0,0 +1,38 @@
+package com.baeldung.pojo.test;
+
+import com.baeldung.complex.pojo.Customer;
+import com.baeldung.initializer.SimpleXstreamInitializer;
+import com.thoughtworks.xstream.XStream;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.FileReader;
+import java.io.IOException;
+
+public class ComplexXmlToObjectAnnotationTest {
+
+    private XStream xstream = null;
+
+    @Before
+    public void dataSetup() {
+        SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+        xstream = simpleXstreamInitializer.getXstreamInstance();
+        xstream.processAnnotations(Customer.class);
+    }
+
+    @Test
+    public void convertXmlToObjectFromFile() {
+        try {
+            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());
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

xstream/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectAttributeCollectionTest.java

@@ -0,0 +1,42 @@
+package com.baeldung.pojo.test;
+
+import com.baeldung.complex.pojo.ContactDetails;
+import com.baeldung.complex.pojo.Customer;
+import com.baeldung.initializer.SimpleXstreamInitializer;
+import com.thoughtworks.xstream.XStream;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.FileReader;
+import java.io.IOException;
+
+public class ComplexXmlToObjectAttributeCollectionTest {
+
+    private XStream xstream = null;
+
+    @Before
+    public void dataSetup() {
+        SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+        xstream = simpleXstreamInitializer.getXstreamInstance();
+        xstream.processAnnotations(Customer.class);
+    }
+
+    @Test
+    public void convertXmlToObjectFromFile() {
+        try {
+            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());
+            for (ContactDetails contactDetails : customer.getContactDetailsList()) {
+                Assert.assertNotNull(contactDetails.getContactType());
+            }
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

xstream/src/test/java/com/baeldung/pojo/test/ComplexXmlToObjectCollectionTest.java

@@ -0,0 +1,39 @@
+package com.baeldung.pojo.test;
+
+import com.baeldung.implicit.collection.pojo.Customer;
+import com.baeldung.initializer.SimpleXstreamInitializer;
+import com.thoughtworks.xstream.XStream;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.FileReader;
+import java.io.IOException;
+
+public class ComplexXmlToObjectCollectionTest {
+
+    private XStream xstream = null;
+
+    @Before
+    public void dataSetup() {
+        SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+        xstream = simpleXstreamInitializer.getXstreamInstance();
+        xstream.processAnnotations(Customer.class);
+    }
+
+    @Test
+    public void convertXmlToObjectFromFile() {
+        try {
+            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());
+            //System.out.println(customer);
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

xstream/src/test/java/com/baeldung/pojo/test/XmlToObjectAliasTest.java

@@ -0,0 +1,37 @@
+package com.baeldung.pojo.test;
+
+import com.baeldung.initializer.SimpleXstreamInitializer;
+import com.baeldung.pojo.Customer;
+import com.thoughtworks.xstream.XStream;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.FileReader;
+import java.io.IOException;
+
+public class XmlToObjectAliasTest {
+
+    private XStream xstream = null;
+
+    @Before
+    public void dataSetup() {
+        SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+        xstream = simpleXstreamInitializer.getXstreamInstance();
+        xstream.alias("customer", Customer.class);
+    }
+
+    @Test
+    public void convertXmlToObjectFromFile() {
+        try {
+            ClassLoader classLoader = getClass().getClassLoader();
+            FileReader reader = new FileReader(classLoader.getResource("data-file-alias.xml").getFile());
+            Customer customer = (Customer) xstream.fromXML(reader);
+            Assert.assertNotNull(customer);
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

xstream/src/test/java/com/baeldung/pojo/test/XmlToObjectAnnotationTest.java

@@ -0,0 +1,38 @@
+package com.baeldung.pojo.test;
+
+import com.baeldung.annotation.pojo.Customer;
+import com.baeldung.initializer.SimpleXstreamInitializer;
+import com.thoughtworks.xstream.XStream;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.FileReader;
+import java.io.IOException;
+
+public class XmlToObjectAnnotationTest {
+
+    private XStream xstream = null;
+
+    @Before
+    public void dataSetup() {
+        SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+        xstream = simpleXstreamInitializer.getXstreamInstance();
+        xstream.processAnnotations(Customer.class);
+    }
+
+    @Test
+    public void convertXmlToObjectFromFile() {
+        try {
+            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());
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

xstream/src/test/java/com/baeldung/pojo/test/XmlToObjectFieldAliasTest.java

@@ -0,0 +1,39 @@
+package com.baeldung.pojo.test;
+
+import com.baeldung.initializer.SimpleXstreamInitializer;
+import com.baeldung.pojo.Customer;
+import com.thoughtworks.xstream.XStream;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.FileReader;
+import java.io.IOException;
+
+public class XmlToObjectFieldAliasTest {
+
+    private XStream xstream = null;
+
+    @Before
+    public void dataSetup() {
+        SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+        xstream = simpleXstreamInitializer.getXstreamInstance();
+        xstream.alias("customer", Customer.class);
+        xstream.aliasField("fn", Customer.class, "firstName");
+    }
+
+    @Test
+    public void convertXmlToObjectFromFile() {
+        try {
+            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());
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

xstream/src/test/java/com/baeldung/pojo/test/XmlToObjectIgnoreFieldsTest.java

@@ -0,0 +1,38 @@
+package com.baeldung.pojo.test;
+
+import com.baeldung.initializer.SimpleXstreamInitializer;
+import com.baeldung.pojo.Customer;
+import com.thoughtworks.xstream.XStream;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.FileReader;
+import java.io.IOException;
+
+public class XmlToObjectIgnoreFieldsTest {
+
+    private XStream xstream = null;
+
+    @Before
+    public void dataSetup() {
+        SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+        xstream = simpleXstreamInitializer.getXstreamInstance();
+        xstream.alias("customer", Customer.class);
+        xstream.ignoreUnknownElements();
+    }
+
+    @Test
+    public void convertXmlToObjectFromFile() {
+        try {
+            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);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

xstream/src/test/java/com/baeldung/pojo/test/XmlToObjectTest.java

@@ -0,0 +1,46 @@
+package com.baeldung.pojo.test;
+
+import com.baeldung.initializer.SimpleXstreamInitializer;
+import com.baeldung.pojo.Customer;
+import com.baeldung.utility.SimpleDataGeneration;
+import com.thoughtworks.xstream.XStream;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.FileReader;
+import java.io.IOException;
+
+public class XmlToObjectTest {
+
+    private XStream xstream = null;
+
+    @Before
+    public void dataSetup() {
+        SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+        xstream = simpleXstreamInitializer.getXstreamInstance();
+    }
+
+    @Test
+    public void convertXmlToObjectFromFile() {
+        try {
+            ClassLoader classLoader = getClass().getClassLoader();
+            FileReader reader = new FileReader(classLoader.getResource("data-file.xml").getFile());
+            Customer customer = (Customer) xstream.fromXML(reader);
+            Assert.assertNotNull(customer);
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Test
+    public void convertXmlToObjectFromString() {
+        Customer customer = SimpleDataGeneration.generateData();
+        String dataXml = xstream.toXML(customer);
+        Customer convertedCustomer = (Customer) xstream.fromXML(dataXml);
+        Assert.assertNotNull(convertedCustomer);
+    }
+
+
+}

xstream/src/test/java/com/baeldung/utility/XStreamSimpleXmlTest.java

@@ -0,0 +1,57 @@
+package com.baeldung.utility;
+
+import com.baeldung.initializer.SimpleXstreamInitializer;
+import com.baeldung.pojo.AddressDetails;
+import com.baeldung.pojo.ContactDetails;
+import com.baeldung.pojo.Customer;
+import com.thoughtworks.xstream.XStream;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class XStreamSimpleXmlTest {
+
+    private Customer customer;
+    private String dataXml;
+    private XStream xstream;
+
+    @Before
+    public void dataSetup() {
+        customer = SimpleDataGeneration.generateData();
+        SimpleXstreamInitializer simpleXstreamInitializer = new SimpleXstreamInitializer();
+        xstream = simpleXstreamInitializer.getXstreamInstance();
+        xstream.processAnnotations(Customer.class);
+        xstream.processAnnotations(AddressDetails.class);
+        xstream.processAnnotations(ContactDetails.class);
+        xstream.omitField(Customer.class, "lastName");
+        xstream.registerConverter(new MyDateConverter());
+        // xstream.registerConverter(new MySingleValueConverter());
+        xstream.aliasField("fn", Customer.class, "firstName");
+        dataXml = xstream.toXML(customer);
+    }
+
+    @Test
+    public void testClassAliasedAnnotation() {
+        Assert.assertNotEquals(-1, dataXml.indexOf("<customer>"));
+    }
+
+    @Test
+    public void testFieldAliasedAnnotation() {
+        Assert.assertNotEquals(-1, dataXml.indexOf("<fn>"));
+    }
+
+    @Test
+    public void testImplicitCollection() {
+        Assert.assertEquals(-1, dataXml.indexOf("contactDetailsList"));
+    }
+
+    @Test
+    public void testDateFieldFormating() {
+        Assert.assertEquals("14-02-1986", dataXml.substring(dataXml.indexOf("<dob>") + 5, dataXml.indexOf("</dob>")));
+    }
+
+    @Test
+    public void testOmitField() {
+        Assert.assertEquals(-1, dataXml.indexOf("lastName"));
+    }
+}

xstream/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>

xstream/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>

xstream/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>

xstream/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>

xstream/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>

xstream/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>