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How to solve null pointer exception of webdriver in selenium

This is the code i have written below in junit. However it shows me a null pointer exception for the webdriver.
i have also printed "driver". it prints "drivernull"
*package demo;
import static org.junit.jupiter.api.Assertions.*;
import java.util.concurrent .TimeUnit;
import org.junit.Before;
import org.junit.jupiter.api.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.remote.DesiredCapabilities;
class Demo1 {
public WebDriver driver;
String url="www.google.com";
#Before
public void before() {
System.setProperty("webdriver.chrome.driver", "D:\\chromedriver.exe");
driver = new ChromeDriver();
driver.get(url);
driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
}
#Test
public void test() throws Exception {
System.out.println("driver"+driver);
Thread.sleep(2000);
driver.findElement(By.xpath("//*[#id=\'prm\']/div/a")).click();
}
}*
This is the failure trace
java.lang.NullPointerException at demo.Demo1.test(Demo1.java:31) at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:389)
at
org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:115)
at
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:167)
at
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor$$Lambda$170/0000000000000000.execute(Unknown
Source) at
org.junit.jupiter.engine.execution.ThrowableCollector.execute(ThrowableCollector.java:40)
at
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:163)
at
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:110)
at
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:57)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$$Lambda$139/0000000000000000.execute(Unknown
Source) at
org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$$Lambda$142/0000000000000000.accept(Unknown
Source) at
java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
at
java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
at java.util.Iterator.forEachRemaining(Iterator.java:116) at
java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
at
java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:497)
at
java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:487)
at
java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
at
java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
at
java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:241)
at
java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:485)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$$Lambda$139/0000000000000000.execute(Unknown
Source) at
org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$$Lambda$142/0000000000000000.accept(Unknown
Source) at
java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
at
java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
at java.util.Iterator.forEachRemaining(Iterator.java:116) at
java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
at
java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:497)
at
java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:487)
at
java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
at
java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
at
java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:241)
at
java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:485)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$$Lambda$139/0000000000000000.execute(Unknown
Source) at
org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:51)
at
org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43)
at
org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:170)
at
org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:154)
at
org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)
at
org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:86)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206)

Please check chromedriver.exe path. It should be in D: drive.
I am not seeing anything incorrect in your code.

It seems that something in your before() throws an exception because driver is null. So get(url) or manage().
Most likely it is get(url) (you can see that precisely in your stack trace)
So new ChromeDriver() probably fails, check your installation.
Hence, when test is called, driver member variable is still null, so the display is "null".
the get started example explicits the protocol in the path. This is most likely unrelated but you should change
String url="www.google.com";
to
String url="http://www.google.com";

Please change
String url="www.google.com";
to
String url="http://www.google.com";
Why do we need to do because driver.get method is not adding protocol like "http" or "https" before your url

Spring MVC : org.apache.catalina.LifecycleException

I am using Intelli J 2018 and configure local apache of 8.5. I am new to spring and trying to build a demo application. I have build an application using maven and now trying to migrate it from xml configuration to java base configuration. I have deleted 2 xml files i.e. dispatcher-servlet.xml and web.xml. I have added new dependency in pom.xml and new plugin which are
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
and
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.4</version>
<configuration>
<warSourceDirectory>src/main/webapp</warSourceDirectory>
<warName>springmvcWeb</warName>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
I have added 2 new classes which are
package com.tabish.spring.springmvc.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
#Configuration
#EnableWebMvc
//#ComponentScan(basePackages = {"com.tabish.spring.springmvc.controller"})
#ComponentScan("com.tabish.spring.springmvc")
public class DispatcherConfig extends WebMvcConfigurerAdapter {
#Bean
public ViewResolver viewResolver(){
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/WEB-INF/views");
resolver.setSuffix(".jsp");
return resolver;
}
#Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
}
and
package com.tabish.spring.springmvc.config;
import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.ContextLoaderListener;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;
import java.util.Set;
public class WebServletConfiguration implements WebApplicationInitializer {
#Override
public void onStartup(ServletContext servletContext) throws ServletException {
// Create the dispatcher servlet's Spring application context
AnnotationConfigWebApplicationContext dispatcherContext = new AnnotationConfigWebApplicationContext();
dispatcherContext.register(DispatcherConfig.class);
// Manage the lifecycle of the root application context
//servletContext.addListener(new ContextLoaderListener(dispatcherContext));
//servletContext.setInitParameter("defaultHtmlEscape", "true");
// Register and map the dispatcher servlet
ServletRegistration.Dynamic dispatcher = servletContext.addServlet("dispatcher", new DispatcherServlet(dispatcherContext));
** LINE 26 dispatcher.setLoadOnStartup(1); **
dispatcher.addMapping("/");
//Set<String> mappingConflicts = dispatcher.addMapping("/");
/*if (!mappingConflicts.isEmpty()) {
for (String s : mappingConflicts) {
System.out.println("Mapping Conflict: " + s);
}
throw new IllegalStateException(
"'appServlet' cannot be mapped to '/' under Tomcat versions <= 8.5");
}*/
}
}
Here is my stack trace
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:743)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:719)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1720)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:479)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:428)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at com.tabish.spring.springmvc.config.WebServletConfiguration.onStartup(WebServletConfiguration.java:26)
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:169)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5154)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
I have mentioned line 26 here and it is causing NPE at that line. I have tried many things but couldnt reach to any result.
Any help would be much appreciated

UnsatisfiedLinkError occurs on openjfx webkit（32bit）

In order to use webview with amazoncorretto 8 (32bit), I want to build 32bit openjfx.
I could create a library, but when I use it I get an UnsatisfiedLinkError.
Build it with reference to the following URL.
https://dzone.com/articles/how-to-build-openjfx-8-on-windows-from-source
Visual Studio ：Community ⇒ Professional
It is targeting 32 bit
Note: No error occurred when building on 64 bit.
Sample Code:
import java.util.Properties;
import java.util.TreeSet;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.Priority;
import javafx.scene.layout.VBox;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
public class SimpleJavaFX8Example extends Application {
private Stage stg;
#Override
public void start(Stage stg) throws Exception {
this.stg = stg;
stg.setTitle(getClass().getSimpleName());
VBox box = new VBox();
WebView wv = new WebView();
WebEngine engine = wv.getEngine();
StringBuilder buf = new StringBuilder();
buf.append("<table>");
Properties props = System.getProperties();
for (String name : new TreeSet<>(props.stringPropertyNames())) {
String val = props.getProperty(name);
val = val.replace("&", "&").replace("<", "<");
buf.append("<tr><td>").append(name).append("</td><td>").append(val).append("</td></tr>");
}
buf.append("</table>");
engine.loadContent("<title>t</title><h1>System Properties</h1>" + buf.toString(), "text/html");
box.getChildren().add(wv);
VBox.setVgrow(wv, Priority.ALWAYS);
stg.setScene(new Scene(box));
stg.show();
}
public static void main(String[] args) {
launch(args);
}
}
Error:
Exception in Application start method
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$1(LauncherImpl.java:182)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.UnsatisfiedLinkError: com.sun.webkit.WebPage.twkInitWebCore(ZZZ)V
at com.sun.webkit.WebPage.twkInitWebCore(Native Method)
at com.sun.webkit.WebPage.lambda$static$0(WebPage.java:156)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.webkit.WebPage.<clinit>(WebPage.java:132)
at javafx.scene.web.WebEngine.<init>(WebEngine.java:881)
at javafx.scene.web.WebEngine.<init>(WebEngine.java:868)
at javafx.scene.web.WebView.<init>(WebView.java:273)
at SimpleJavaFX8Example.start(SimpleJavaFX8Example.java:23)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$8(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$7(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$5(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$6(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$3(WinApplication.java:177)
... 1 more
Exception running application SimpleJavaFX8Example

How to test Servlet on Mockito?

I'm new to mokito, I'm trying to test my servlet who is responsible for registering the user. I'm trying to lock up the HttpRequestServlet but I always get ClassFormException. I can not understand why. How can this be fixed, can you tell? How it is possible to properly test a servlet and to mock HttpServletRequest?
#Mock
private HttpServletRequest request = mock(HttpServletRequest.class); ;
#After
public void verifyRequest(){
verify(request).getParameter(ConstantApp.RegistrationConstantField.GET_FIRST_NAME);
verify(request).getParameter(ConstantApp.RegistrationConstantField.GET_LAST_NAME);
verify(request).getParameter(ConstantApp.RegistrationConstantField.GET_LOGIN);
verify(request).getParameter(ConstantApp.RegistrationConstantField.GET_EMAIL);
verify(request, Mockito.atLeast(2)).getParameter(ConstantApp.RegistrationConstantField.GET_PASSWORD);
verify(request).getParameter(ConstantApp.RegistrationConstantField.GET_CONFIRM_PASSWORD);
}
#Test
public void shouldReturnTrue_WhenWeGetValidField() throws Exception{
when(request.getParameter(ConstantApp.RegistrationConstantField.GET_FIRST_NAME)).thenReturn("Aloha");
when(request.getParameter(ConstantApp.RegistrationConstantField.GET_LAST_NAME)).thenReturn("Dance");
when(request.getParameter(ConstantApp.RegistrationConstantField.GET_LOGIN)).thenReturn("AlohaDance123");
when(request.getParameter(ConstantApp.RegistrationConstantField.GET_EMAIL)).thenReturn("aloha.dance#gmail.com");
when(request.getParameter(ConstantApp.RegistrationConstantField.GET_PASSWORD)).thenReturn("12345678Aa$");
when(request.getParameter(ConstantApp.RegistrationConstantField.GET_CONFIRM_PASSWORD)).thenReturn("12345678Aa$");
Validation validation = new Validation();
Map<String, String> errorMap = validation.validate(new RegistrationInfoImpl(request));
assertTrue(errorMap.isEmpty());
}
My Exception:
java.lang.ClassFormatError: Absent Code attribute in method that is not native or abstract in class file javax/servlet/ServletException
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.getDeclaredMethods(Class.java:1975)
at org.mockito.cglib.core.ReflectUtils.addAllMethods(ReflectUtils.java:349)
at org.mockito.cglib.proxy.Enhancer.getMethods(Enhancer.java:427)
at org.mockito.cglib.proxy.Enhancer.generateClass(Enhancer.java:457)
at org.mockito.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
at org.mockito.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:217)
at org.mockito.cglib.proxy.Enhancer.createHelper(Enhancer.java:378)
at org.mockito.cglib.proxy.Enhancer.createClass(Enhancer.java:318)
at org.mockito.internal.creation.cglib.ClassImposterizer.createProxyClass(ClassImposterizer.java:123)
at org.mockito.internal.creation.cglib.ClassImposterizer.imposterise(ClassImposterizer.java:57)
at org.mockito.internal.creation.cglib.ClassImposterizer.imposterise(ClassImposterizer.java:49)
at org.mockito.internal.creation.cglib.CglibMockMaker.createMock(CglibMockMaker.java:24)
at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:33)
at org.mockito.internal.MockitoCore.mock(MockitoCore.java:59)
at org.mockito.Mockito.mock(Mockito.java:1285)
at org.mockito.Mockito.mock(Mockito.java:1163)
at servlet.RegistrationServletTest.<init>(RegistrationServletTest.java:25)

spring 4 and hibernate 5 integration: could not obtain transaction-synchronized Session for current thread

Spring 4.2.5.RELEASE
Hibernate 5.1.0.Final
HSQLDB 2.3.3
I tried to make the demo integration project as simple as possible. But I ran into the problem org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thread. I searched Google and tried a bunch of methods to fix it but still failed.
App.java
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
import org.springframework.orm.hibernate5.HibernateTransactionManager;
import org.springframework.orm.hibernate5.LocalSessionFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.ContextLoaderListener;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;
import javax.sql.DataSource;
#Configuration
#ComponentScan(basePackages = "com.example")
#EnableTransactionManagement
public class App implements WebApplicationInitializer {
private static final Logger logger = LogManager.getLogger(App.class);
#Override
public void onStartup(ServletContext servletContext) throws ServletException {
AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
context.register(App.class);
servletContext.addListener(new ContextLoaderListener(context));
ServletRegistration.Dynamic dispatcher = servletContext.addServlet("dispatcherServlet", new DispatcherServlet(context));
dispatcher.addMapping("/");
}
#Bean
public DataSource dataSource() {
EmbeddedDatabaseBuilder builder = new EmbeddedDatabaseBuilder();
return builder.setType(EmbeddedDatabaseType.HSQL).build();
}
#Bean
#Autowired
public LocalSessionFactoryBean sessionFactory(DataSource dataSource) {
LocalSessionFactoryBean factoryBean = new LocalSessionFactoryBean();
factoryBean.setDataSource(dataSource);
factoryBean.setAnnotatedPackages("com.example");
return factoryBean;
}
#Bean
#Autowired
public PlatformTransactionManager txManager(SessionFactory sessionFactory) {
return new HibernateTransactionManager(sessionFactory);
}
}
And here is my hibernate.properties
hibernate.dialect = org.hibernate.dialect.HSQLDialect
hibernate.hbm2ddl.auto = create
hibernate.current_session_context_class = thread
hibernate.show_sql = true
UPDATE
Here is the demo project https://github.com/reliveyy/spring4-hibernate5-demo
Full stacktrace
org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thread
at org.springframework.orm.hibernate5.SpringSessionContext.currentSession(SpringSessionContext.java:132) ~[spring-orm-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:687) ~[hibernate-core-5.1.0.Final.jar:5.1.0.Final]
at org.projw.HelloController.onSpringStartup(HelloController.java:51) ~[classes/:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_66]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_66]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_66]
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_66]
at org.springframework.context.event.ApplicationListenerMethodAdapter.doInvoke(ApplicationListenerMethodAdapter.java:227) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.context.event.ApplicationListenerMethodAdapter.processEvent(ApplicationListenerMethodAdapter.java:144) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.context.event.ApplicationListenerMethodAdapter.onApplicationEvent(ApplicationListenerMethodAdapter.java:106) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:163) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:136) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:381) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:335) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:855) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE]
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4810) ~[catalina.jar:8.0.32]
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5255) ~[catalina.jar:8.0.32]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) ~[catalina.jar:8.0.32]
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725) ~[catalina.jar:8.0.32]
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701) ~[catalina.jar:8.0.32]
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717) ~[catalina.jar:8.0.32]
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1692) ~[catalina.jar:8.0.32]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_66]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_66]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_66]
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_66]
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) ~[tomcat-coyote.jar:8.0.32]
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) ~[?:1.8.0_66]
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) ~[?:1.8.0_66]
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:465) ~[catalina.jar:8.0.32]
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:415) ~[catalina.jar:8.0.32]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_66]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_66]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_66]
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_66]
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) ~[tomcat-coyote.jar:8.0.32]
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) ~[?:1.8.0_66]
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) ~[?:1.8.0_66]
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1471) ~[?:1.8.0_66]
at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) ~[?:1.8.0_66]
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1312) ~[?:1.8.0_66]
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1404) ~[?:1.8.0_66]
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:832) ~[?:1.8.0_66]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_66]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_66]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_66]
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_66]
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323) ~[?:1.8.0_66]
at sun.rmi.transport.Transport$1.run(Transport.java:200) ~[?:1.8.0_66]
at sun.rmi.transport.Transport$1.run(Transport.java:197) ~[?:1.8.0_66]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_66]
at sun.rmi.transport.Transport.serviceCall(Transport.java:196) ~[?:1.8.0_66]
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) ~[?:1.8.0_66]
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) ~[?:1.8.0_66]
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$256(TCPTransport.java:683) ~[?:1.8.0_66]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_66]
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) [?:1.8.0_66]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_66]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_66]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_66]

Use
factoryBean.setPackagesToScan("com.example");
instead of
factoryBean.setAnnotatedPackages("com.example");
to specify a package to scan.
Try to open() and close() the Session in place of this code
Session session = sessionFactory.getCurrentSession();
session.beginTransaction();
session.save(person);
session.getTransaction().commit();

Try to add
#Transactional(propagation = Propagation.SUPPORTS,rollbackFor = Exception.class)
to your Service classes.
I had the same issue. This annotation helped me.