java.lang.NullPointerException: null

Stack Overflow | doublemc | 1 week ago
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    Root Cause Analysis

    1. java.lang.NullPointerException

      null

      at com.doublemc.controllers.UserController.createUser()
    2. com.doublemc.controllers
      UserController.createUser
      1. com.doublemc.controllers.UserController.createUser(UserController.java:37)
      1 frame
    3. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:498)
      4 frames
    4. Spring
      InvocableHandlerMethod.invokeForRequest
      1. org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
      2. org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
      2 frames
    5. Spring MVC
      FrameworkServlet.doPost
      1. org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116)
      2. org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
      3. org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
      4. org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
      5. org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
      6. org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
      7. org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
      8. org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
      8 frames
    6. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
      1 frame
    7. Spring MVC
      FrameworkServlet.service
      1. org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
      1 frame
    8. Spring TestContext
      TestDispatcherServlet.service
      1. org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:65)
      1 frame
    9. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
      1 frame
    10. Spring TestContext
      MockMvc.perform
      1. org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:167)
      2. org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134)
      3. org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:155)
      3 frames
    11. com.doublemc.controllers
      UserControllerTest.shouldRegisterNewUser
      1. com.doublemc.controllers.UserControllerTest.shouldRegisterNewUser(UserControllerTest.java:40)
      1 frame
    12. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:498)
      4 frames
    13. JUnit
      JUnitCore.run
      1. org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
      2. org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
      3. org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
      4. org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
      5. org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
      6. org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
      7. org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
      8. org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
      9. org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
      10. org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
      11. org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
      12. org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
      13. org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
      14. org.junit.runners.ParentRunner.run(ParentRunner.java:363)
      15. org.junit.runner.JUnitCore.run(JUnitCore.java:137)
      15 frames
    14. IntelliJ junit4 module
      JUnit4IdeaTestRunner.startRunnerWithArgs
      1. com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
      1 frame
    15. IDEA
      JUnitStarter.main
      1. com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
      2. com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)
      3. com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
      3 frames
    16. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:498)
      4 frames
    17. IDEA
      AppMain.main
      1. com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
      1 frame