Merge translation triggers exception when creating new TextFlowTarget

The issue is mainly when doing "merge translation", if targetTft is new, then an exception will be triggered while updating cache (TranslationStateCacheImpl#updateDocStatusCache)

Stack trace:

at org.hibernate.event.spi.LoadEvent.<init>(LoadEvent.java:109) [hibernate-core-4.2.15.Final.jar:4.2.15.Final]
at org.hibernate.event.spi.LoadEvent.<init>(LoadEvent.java:79) [hibernate-core-4.2.15.Final.jar:4.2.15.Final]
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.getReference(SessionImpl.java:2387) [hibernate-core-4.2.15.Final.jar:4.2.15.Final]
at org.hibernate.internal.SessionImpl.load(SessionImpl.java:905) [hibernate-core-4.2.15.Final.jar:4.2.15.Final]
at org.hibernate.search.impl.FullTextSessionImpl.load(FullTextSessionImpl.java:694) [hibernate-search-orm-4.4.4.Final.jar:4.4.4.Final]
at sun.reflect.GeneratedMethodAccessor685.invoke(Unknown Source) [:1.7.0_79]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_79]
at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_79]
at org.jboss.seam.persistence.HibernateSessionInvocationHandler.invoke(HibernateSessionInvocationHandler.java:93) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at com.sun.proxy.$Proxy187.load(Unknown Source)
at org.zanata.dao.AbstractDAOImpl.findById(AbstractDAOImpl.java:58) [classes:]
at sun.reflect.GeneratedMethodAccessor726.invoke(Unknown Source) [:1.7.0_79]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_79]
at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_79]
at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:79) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:196) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:114) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.zanata.dao.TextFlowTargetDAO_$$javassist_seam_54.findById(TextFlowTargetDAO$$_javassist_seam_54.java) [classes:]
at org.zanata.service.impl.TranslationStateCacheImpl.updateDocStatusCache(TranslationStateCacheImpl.java:208) [classes:]
at org.zanata.service.impl.TranslationStateCacheImpl.textFlowStateUpdated(TranslationStateCacheImpl.java:197) [classes:]
at sun.reflect.GeneratedMethodAccessor109796.invoke(Unknown Source) [:1.7.0_79]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_79]
at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_79]
at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:79) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:196) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:114) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.zanata.service.impl.TranslationStateCacheImpl_$$javassist_seam_52.textFlowStateUpdated(TranslationStateCacheImpl$$_javassist_seam_52.java) [classes:]
at org.zanata.service.impl.TranslationUpdatedManager.textFlowStateUpdated(TranslationUpdatedManager.java:48) [classes:]
at sun.reflect.GeneratedMethodAccessor110340.invoke(Unknown Source) [:1.7.0_79]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_79]
at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_79]
at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:79) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:196) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:114) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.zanata.service.impl.TranslationUpdatedManager_$$javassist_seam_120.textFlowStateUpdated(TranslationUpdatedManager$$_javassist_seam_120.java) [classes:]
at sun.reflect.GeneratedMethodAccessor110339.invoke(Unknown Source) [:1.7.0_79]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_79]
at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_79]
at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:144) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.Component.callComponentMethod(Component.java:2317) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.core.Events.raiseEvent(Events.java:85) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.async.AsynchronousEvent$1.process(AsynchronousEvent.java:33) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.async.Asynchronous$ContextualAsynchronousRequest.run(Asynchronous.java:80) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.async.AsynchronousEvent.execute(AsynchronousEvent.java:27) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.async.TransactionSuccessEvent.afterCompletion(TransactionSuccessEvent.java:24) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.transaction.SynchronizationRegistry.afterTransactionCompletion(SynchronizationRegistry.java:42) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.transaction.SeSynchronizations.afterTransactionCommit(SeSynchronizations.java:37) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.transaction.UTTransaction.commit(UTTransaction.java:57) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.util.Work.workInTransaction(Work.java:72) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.zanata.service.impl.MergeTranslationsServiceImpl.mergeTranslationBatch(MergeTranslationsServiceImpl.java:170) [classes:]
at org.zanata.service.impl.MergeTranslationsServiceImpl.startMergeTranslations(MergeTranslationsServiceImpl.java:144) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_79]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_79]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_79]
at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_79]
at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.zanata.async.AsyncMethodInterceptor.aroundInvoke(AsyncMethodInterceptor.java:107) [classes:]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:79) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:196) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:114) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.zanata.service.impl.MergeTranslationsServiceImpl_$$javassist_seam_62.startMergeTranslations(MergeTranslationsServiceImpl$$_javassist_seam_62.java) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_79]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_79]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_79]
at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_79]
at org.zanata.async.AsyncMethodInterceptor$1.call(AsyncMethodInterceptor.java:84) [classes:]
at org.zanata.async.AsyncTaskManager$1.execute(AsyncTaskManager.java:100) [classes:]
at org.jboss.seam.security.Identity.runAs(Identity.java:743) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.jboss.seam.security.RunAsOperation.run(RunAsOperation.java:75) [jboss-seam-2.3.1.Final.jar:2.3.1.Final]
at org.zanata.async.AsyncTaskManager$RunnableOperation.run(AsyncTaskManager.java:164) [classes:]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_79]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_79]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_79]