java.lang.NullPointerException: null

Stack Overflow | Bruce | 10 months ago
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    Spring Data REST - How to enable RepositoryRestExceptionHandler?

    Stack Overflow | 1 year ago | user1274068
    org.springframework.data.rest.webmvc.support.ETagDoesntMatchException
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    GitHub | 2 months ago | kopax
    java.lang.NullPointerException: null

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    Root Cause Analysis

    1. java.lang.NullPointerException

      null

      at org.springframework.data.rest.webmvc.support.ETag.getVersionInformation()
    2. Spring Data REST - WebMVC
      RepositoryEntityController.putItemResource
      1. org.springframework.data.rest.webmvc.support.ETag.getVersionInformation(ETag.java:192)[spring-data-rest-webmvc-2.4.1.RELEASE.jar:na]
      2. org.springframework.data.rest.webmvc.support.ETag.from(ETag.java:76)[spring-data-rest-webmvc-2.4.1.RELEASE.jar:na]
      3. org.springframework.data.rest.webmvc.support.ETag.verify(ETag.java:94)[spring-data-rest-webmvc-2.4.1.RELEASE.jar:na]
      4. org.springframework.data.rest.webmvc.RepositoryEntityController.putItemResource(RepositoryEntityController.java:410)[spring-data-rest-webmvc-2.4.1.RELEASE.jar:na]
      4 frames
    3. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[na:1.8.0_45]
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[na:1.8.0_45]
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[na:1.8.0_45]
      4. java.lang.reflect.Method.invoke(Method.java:497)[na:1.8.0_45]
      4 frames
    4. Spring
      InvocableHandlerMethod.invokeForRequest
      1. org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222)[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
      2. org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
      2 frames
    5. Spring MVC
      FrameworkServlet.doPut
      1. org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
      2. org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814)[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
      3. org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737)[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
      4. org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
      5. org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
      6. org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
      7. org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969)[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
      8. org.springframework.web.servlet.FrameworkServlet.doPut(FrameworkServlet.java:882)[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
      8 frames