java.lang.NullPointerException: null

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    Root Cause Analysis

    1. java.lang.NullPointerException

      null

      at com.teja.controller.CategoryController.getAllCategories()
    2. com.teja.controller
      CategoryController.getAllCategories
      1. com.teja.controller.CategoryController.getAllCategories(CategoryController.java:23)[classes/:na]
      1 frame
    3. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[na:1.8.0_73]
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[na:1.8.0_73]
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[na:1.8.0_73]
      4. java.lang.reflect.Method.invoke(Method.java:497)[na:1.8.0_73]
      4 frames
    4. Spring
      InvocableHandlerMethod.invokeForRequest
      1. org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)[spring-web-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      2. org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)[spring-web-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      2 frames
    5. Spring MVC
      FrameworkServlet.doGet
      1. org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)[spring-webmvc-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      2. org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:776)[spring-webmvc-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      3. org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)[spring-webmvc-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      4. org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)[spring-webmvc-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      5. org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)[spring-webmvc-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      6. org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)[spring-webmvc-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      7. org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:967)[spring-webmvc-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      8. org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:858)[spring-webmvc-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      8 frames
    6. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:622)[tomcat-embed-core-8.0.23.jar:8.0.23]
      1 frame
    7. Spring MVC
      FrameworkServlet.service
      1. org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843)[spring-webmvc-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      1 frame
    8. Spring TestContext
      TestDispatcherServlet.service
      1. org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:65)[spring-test-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      1 frame
    9. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:729)[tomcat-embed-core-8.0.23.jar:8.0.23]
      1 frame
    10. Spring TestContext
      MockMvc.perform
      1. org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:167)[spring-test-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      2. org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134)[spring-test-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      3. org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:144)[spring-test-4.1.7.RELEASE.jar:4.1.7.RELEASE]
      3 frames
    11. Unknown
      CategoryControllerTest.categories_ShouldRenderCategoriesView
      1. CategoryControllerTest.categories_ShouldRenderCategoriesView(CategoryControllerTest.java:46)[classes/:na]
      1 frame
    12. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[na:1.8.0_73]
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[na:1.8.0_73]
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[na:1.8.0_73]
      4. java.lang.reflect.Method.invoke(Method.java:497)[na:1.8.0_73]
      4 frames
    13. JUnit
      ParentRunner.run
      1. org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)[junit-4.12.jar:4.12]
      2. org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)[junit-4.12.jar:4.12]
      3. org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)[junit-4.12.jar:4.12]
      4. org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)[junit-4.12.jar:4.12]
      5. org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)[junit-4.12.jar:4.12]
      6. org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)[junit-4.12.jar:4.12]
      7. org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)[junit-4.12.jar:4.12]
      8. org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)[junit-4.12.jar:4.12]
      9. org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)[junit-4.12.jar:4.12]
      10. org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)[junit-4.12.jar:4.12]
      11. org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)[junit-4.12.jar:4.12]
      12. org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)[junit-4.12.jar:4.12]
      13. org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)[junit-4.12.jar:4.12]
      14. org.junit.runners.ParentRunner.run(ParentRunner.java:363)[junit-4.12.jar:4.12]
      14 frames
    14. Mockito
      MockitoJUnitRunner.run
      1. org.mockito.internal.runners.JUnit45AndHigherRunnerImpl.run(JUnit45AndHigherRunnerImpl.java:37)[mockito-core-1.10.19.jar:na]
      2. org.mockito.runners.MockitoJUnitRunner.run(MockitoJUnitRunner.java:62)[mockito-core-1.10.19.jar:na]
      2 frames
    15. JUnit4 Runner
      JUnit4TestReference.run
      1. org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)[.cp/:na]
      1 frame
    16. JUnit3 Runner
      RemoteTestRunner.main
      1. org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)[.cp/:na]
      2. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)[.cp/:na]
      3. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)[.cp/:na]
      4. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)[.cp/:na]
      5. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)[.cp/:na]
      5 frames