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Nov 24th, 2014
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  1.  
  2. org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com.metacube.questionbank.model.User#1]
  3.     at org.hibernate.engine.internal.StatefulPersistenceContext.checkUniqueness(StatefulPersistenceContext.java:697)
  4.     at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performUpdate(DefaultSaveOrUpdateEventListener.java:296)
  5.     at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsDetached(DefaultSaveOrUpdateEventListener.java:241)
  6.     at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:109)
  7.     at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90)
  8.     at org.hibernate.internal.SessionImpl.fireSaveOrUpdate(SessionImpl.java:735)
  9.     at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:727)
  10.     at org.hibernate.engine.spi.CascadingAction$5.cascade(CascadingAction.java:258)
  11.     at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:388)
  12.     at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:331)
  13.     at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:209)
  14.     at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:166)
  15.     at org.hibernate.event.internal.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:424)
  16.     at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:263)
  17.     at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:192)
  18.     at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:125)
  19.     at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:206)
  20.     at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:191)
  21.     at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:114)
  22.     at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90)
  23.     at org.hibernate.internal.SessionImpl.fireSaveOrUpdate(SessionImpl.java:735)
  24.     at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:727)
  25.     at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:723)
  26.     at com.metacube.questionbank.dao.impl.AnswerDaoImpl.insertAnswer(AnswerDaoImpl.java:40)
  27.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  28.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  29.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  30.     at java.lang.reflect.Method.invoke(Unknown Source)
  31.     at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
  32.     at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
  33.     at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
  34.     at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98)
  35.     at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:266)
  36.     at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
  37.     at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
  38.     at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
  39.     at com.sun.proxy.$Proxy80.insertAnswer(Unknown Source)
  40.     at com.metacube.questionbank.service.impl.AnswerServiceImpl.insertAnswer(AnswerServiceImpl.java:84)
  41.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  42.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  43.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  44.     at java.lang.reflect.Method.invoke(Unknown Source)
  45.     at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
  46.     at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
  47.     at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
  48.     at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98)
  49.     at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:266)
  50.     at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
  51.     at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
  52.     at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
  53.     at com.sun.proxy.$Proxy81.insertAnswer(Unknown Source)
  54.     at com.metacube.questionbank.controller.QuestionAnswerController.postAnswer(QuestionAnswerController.java:98)
  55.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  56.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  57.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  58.     at java.lang.reflect.Method.invoke(Unknown Source)
  59.     at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
  60.     at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
  61.     at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
  62.     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:781)
  63.     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:721)
  64.     at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
  65.     at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
  66.     at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
  67.     at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
  68.     at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
  69.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:644)
  70.     at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
  71.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
  72.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
  73.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  74.     at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
  75.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
  76.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  77.     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
  78.     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
  79.     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
  80.     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
  81.     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
  82.     at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
  83.     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
  84.     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:534)
  85.     at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081)
  86.     at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658)
  87.     at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222)
  88.     at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566)
  89.     at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523)
  90.     at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
  91.     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
  92.     at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
  93.     at java.lang.Thread.run(Unknown Source)
  94. Nov 24, 2014 9:39:18 PM org.apache.catalina.core.StandardWrapperValve invoke
  95. SEVERE: Servlet.service() for servlet [dispatcherServlet] in context with path [/QuestionbankMyVersion] threw exception [Request processing failed; nested exception is org.springframework.dao.DuplicateKeyException: a different object with the same identifier value was already associated with the session: [com.metacube.questionbank.model.User#1]; nested exception is org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com.metacube.questionbank.model.User#1]] with root cause
  96. org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com.metacube.questionbank.model.User#1]
  97.     at org.hibernate.engine.internal.StatefulPersistenceContext.checkUniqueness(StatefulPersistenceContext.java:697)
  98.     at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performUpdate(DefaultSaveOrUpdateEventListener.java:296)
  99.     at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsDetached(DefaultSaveOrUpdateEventListener.java:241)
  100.     at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:109)
  101.     at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90)
  102.     at org.hibernate.internal.SessionImpl.fireSaveOrUpdate(SessionImpl.java:735)
  103.     at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:727)
  104.     at org.hibernate.engine.spi.CascadingAction$5.cascade(CascadingAction.java:258)
  105.     at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:388)
  106.     at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:331)
  107.     at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:209)
  108.     at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:166)
  109.     at org.hibernate.event.internal.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:161)
  110.     at org.hibernate.event.internal.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:152)
  111.     at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:88)
  112.     at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
  113.     at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1234)
  114.     at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:404)
  115.     at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
  116.     at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)
  117.     at org.springframework.orm.hibernate4.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:558)
  118.     at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:757)
  119.     at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:726)
  120.     at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:496)
  121.     at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:276)
  122.     at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
  123.     at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
  124.     at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
  125.     at com.sun.proxy.$Proxy81.insertAnswer(Unknown Source)
  126.     at com.metacube.questionbank.controller.QuestionAnswerController.postAnswer(QuestionAnswerController.java:98)
  127.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  128.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  129.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  130.     at java.lang.reflect.Method.invoke(Unknown Source)
  131.     at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
  132.     at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
  133.     at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
  134.     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:781)
  135.     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:721)
  136.     at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
  137.     at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
  138.     at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
  139.     at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
  140.     at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
  141.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:644)
  142.     at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
  143.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
  144.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
  145.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  146.     at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
  147.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
  148.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  149.     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
  150.     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
  151.     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
  152.     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
  153.     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
  154.     at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
  155.     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
  156.     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:534)
  157.     at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1081)
  158.     at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658)
  159.     at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222)
  160.     at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566)
  161.     at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523)
  162.     at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
  163.     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
  164.     at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
  165.     at java.lang.Thread.run(Unknown Source)
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