org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException

Stack Overflow | cybertextron | 7 months ago
tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    NullPointer exception in a Spring Rest Controller test - Java

    Stack Overflow | 7 months ago | cybertextron
    org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException

    Root Cause Analysis

    1. org.springframework.web.util.NestedServletException

      Request processing failed; nested exception is java.lang.NullPointerException

      at cloudos.HealthCheckerController.findAll()
    2. cloudos
      HealthCheckerController.findAll
      1. cloudos.HealthCheckerController.findAll(HealthCheckerController.java:39)
      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:497)
      4 frames
    4. Spring
      InvocableHandlerMethod.invokeForRequest
      1. org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
      2. org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
      2 frames
    5. Spring MVC
      FrameworkServlet.doGet
      1. org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:114)
      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.doGet(FrameworkServlet.java:861)
      8 frames
    6. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
      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. cloudos
      HealthCheckerControllerTest.testHealthChecker
      1. cloudos.HealthCheckerControllerTest.testHealthChecker(HealthCheckerControllerTest.java:48)
      1 frame