org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'stu' defined in class path resource [applicationContext.xml]: Instantiation of bean failed; nested exception is java.lang.IllegalStateException: No bean class specified on bean definition

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1232)

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1131)

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502)

    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312)

    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)

    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310)

    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)

    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:758)

    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868)

    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)

    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:144)

    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:85)

    at test.TestSpringTest.init(TestSpringTest.java:16)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

    at java.lang.reflect.Method.invoke(Unknown Source)

    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)

    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)

    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)

    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)

    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)

    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)

    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)

    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)

    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)

    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)

    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)

    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)

    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)

    at org.junit.runner.JUnitCore.run(JUnitCore.java:115)

    at org.junit.vintage.engine.execution.RunnerExecutor.execute(RunnerExecutor.java:42)

    at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source)

    at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)

    at java.util.Iterator.forEachRemaining(Unknown Source)

    at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Unknown Source)

    at java.util.stream.AbstractPipeline.copyInto(Unknown Source)

    at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)

    at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source)

    at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source)

    at java.util.stream.AbstractPipeline.evaluate(Unknown Source)

    at java.util.stream.ReferencePipeline.forEach(Unknown Source)

    at org.junit.vintage.engine.VintageTestEngine.executeAllChildren(VintageTestEngine.java:83)

    at org.junit.vintage.engine.VintageTestEngine.execute(VintageTestEngine.java:74)

    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)

Caused by: java.lang.IllegalStateException: No bean class specified on bean definition

    at org.springframework.beans.factory.support.AbstractBeanDefinition.getBeanClass(AbstractBeanDefinition.java:407)

    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:68)

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1224)

    ... 54 more

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