Uploaded image for project: 'Java Driver'
  1. Java Driver
  2. JAVA-522

Getting Null Pointer Exception in Mongo Java Driver

    • Type: Icon: Bug Bug
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
    • 2.8.0
    • Affects Version/s: 2.7.3
    • Component/s: API
    • None
    • Environment:
      Fedora RHEL5.

      One of our production servers is throwing the following exception stack trace and we would like to elicit help in determining what might be the root cause of the error. The interesting parts of the stakc trace are:

      ava.lang.NullPointerException
      at com.mongodb.CommandResult.getException(CommandResult.java:64)
      at com.mongodb.CommandResult.throwOnError(CommandResult.java:116)
      at com.mongodb.DBPort.checkAuth(DBPort.java:308)

      Any thoughts on the root cause possibilities? The error is intermitent and not consistent.

      Full stack trace below:

      2012-02-14 17:34:47,719 ERROR org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:274) [http-8080-exec-4] - Servlet.service() for servlet spring
      threw exception
      java.lang.NullPointerException
      at com.mongodb.CommandResult.getException(CommandResult.java:64)
      at com.mongodb.CommandResult.throwOnError(CommandResult.java:116)
      at com.mongodb.DBPort.checkAuth(DBPort.java:308)
      at com.mongodb.DBTCPConnector.call(DBTCPConnector.java:201)
      at com.mongodb.DBApiLayer$MyCollection.__find(DBApiLayer.java:303)
      at com.mongodb.DBCursor._check(DBCursor.java:360)
      at com.mongodb.DBCursor._hasNext(DBCursor.java:490)
      at com.mongodb.DBCursor.hasNext(DBCursor.java:515)
      at org.springframework.data.document.mongodb.MongoTemplate.executeFindMultiInternal(MongoTemplate.java:1425)
      at org.springframework.data.document.mongodb.MongoTemplate.doFind(MongoTemplate.java:1186)
      at org.springframework.data.document.mongodb.MongoTemplate.find(MongoTemplate.java:587)
      at org.springframework.data.document.mongodb.repository.AbstractMongoQuery$Execution.readCollection(AbstractMongoQuery.java:106)
      at org.springframework.data.document.mongodb.repository.AbstractMongoQuery$CollectionExecution.execute(AbstractMongoQuery.java:125)
      at org.springframework.data.document.mongodb.repository.AbstractMongoQuery.execute(AbstractMongoQuery.java:80)
      at org.springframework.data.repository.support.RepositoryFactorySupport$QueryExecuterMethodInterceptor.invoke(RepositoryFactorySupport.java:333)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
      at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
      at $Proxy25.findAllAPIsWithUserIdAndRole(Unknown Source)
      at com.disney.tss.ft.cms.service.APIService.getAllAppsForOwner(APIService.java:786)
      at com.disney.tss.ft.cms.controller.APIController.getAllAppsForOwner(APIController.java:363)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:597)
      at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
      at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)
      at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
      at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
      at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
      at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
      at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      at com.disney.tss.ft.apimgmt.AuthenticationEnforcementFilter.doFilter(AuthenticationEnforcementFilter.java:101)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      at com.disney.tss.ft.apimgmt.PSKAuthenticationFilter.doFilter(PSKAuthenticationFilter.java:112)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      at com.disney.tss.ft.apimgmt.PortalOauthFilter.doFilter(PortalOauthFilter.java:106)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
      at com.disney.tomcat.GreenCookieValve.invoke(Unknown Source)
      at com.disney.tomcat.RequestThrottleValve.invoke(Unknown Source)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
      at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:880)
      at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:719)
      at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2081)
      at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
      at java.lang.Thread.run(Thread.java:662)

            Assignee:
            jeff.yemin@mongodb.com Jeffrey Yemin
            Reporter:
            steve.owens@disney.com Steve Owens
            Votes:
            0 Vote for this issue
            Watchers:
            0 Start watching this issue

              Created:
              Updated:
              Resolved: