19:06:57,933 INFO  ~ Connected to jdbc:mysql://localhost/avon
19:07:02,314 INFO  ~ Application 'ScoreDB' is now started !
19:07:03,060 INFO  ~ Listening for HTTP on port 9000 ...
19:42:36,347 ERROR ~ Exception executing batch:
org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1
	at org.hibernate.jdbc.Expectations$BasicExpectation.checkBatched(Expectations.java:85)
	at org.hibernate.jdbc.Expectations$BasicExpectation.verifyOutcome(Expectations.java:70)
	at org.hibernate.jdbc.BatchingBatcher.checkRowCounts(BatchingBatcher.java:90)
	at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:268)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:189)
	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:345)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
	at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:795)
	at play.db.jpa.JPABase._delete(JPABase.java:73)
	at play.db.jpa.GenericModel.delete(GenericModel.java:219)
	at models.scores.Score.removeScoreLink(Score.java:307)
	at controllers.ScoreController.doEdit(ScoreController.java:366)
	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 play.mvc.ActionInvoker.invokeWithContinuation(ActionInvoker.java:540)
	at play.mvc.ActionInvoker.invoke(ActionInvoker.java:498)
	at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:474)
	at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:469)
	at play.mvc.ActionInvoker.invoke(ActionInvoker.java:157)
	at play.server.PlayHandler$NettyInvocation.execute(PlayHandler.java:237)
	at play.Invoker$Invocation.run(Invoker.java:265)
	at play.server.PlayHandler$NettyInvocation.run(PlayHandler.java:217)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206)
	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)
19:42:36,348 ERROR ~ Could not synchronize database state with session
org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1
	at org.hibernate.jdbc.Expectations$BasicExpectation.checkBatched(Expectations.java:85)
	at org.hibernate.jdbc.Expectations$BasicExpectation.verifyOutcome(Expectations.java:70)
	at org.hibernate.jdbc.BatchingBatcher.checkRowCounts(BatchingBatcher.java:90)
	at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:268)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:189)
	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:345)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
	at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:795)
	at play.db.jpa.JPABase._delete(JPABase.java:73)
	at play.db.jpa.GenericModel.delete(GenericModel.java:219)
	at models.scores.Score.removeScoreLink(Score.java:307)
	at controllers.ScoreController.doEdit(ScoreController.java:366)
	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 play.mvc.ActionInvoker.invokeWithContinuation(ActionInvoker.java:540)
	at play.mvc.ActionInvoker.invoke(ActionInvoker.java:498)
	at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:474)
	at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:469)
	at play.mvc.ActionInvoker.invoke(ActionInvoker.java:157)
	at play.server.PlayHandler$NettyInvocation.execute(PlayHandler.java:237)
	at play.Invoker$Invocation.run(Invoker.java:265)
	at play.server.PlayHandler$NettyInvocation.run(PlayHandler.java:217)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206)
	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)
19:42:36,499 ERROR ~

@66fhjeogp
Internal Server Error (500) for request POST /dev/app/score/3554/edit

Execution exception (In /app/models/scores/Score.java around line 307)
OptimisticLockException occured : org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1

play.exceptions.JavaExecutionException: org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1
	at play.mvc.ActionInvoker.invoke(ActionInvoker.java:227)
	at Invocation.HTTP Request(Play!)
Caused by: javax.persistence.OptimisticLockException: org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1
	at org.hibernate.ejb.AbstractEntityManagerImpl.wrapStaleStateException(AbstractEntityManagerImpl.java:1255)
	at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1166)
	at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)
	at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1153)
	at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:798)
	at play.db.jpa.JPABase._delete(JPABase.java:73)
	at play.db.jpa.GenericModel.delete(GenericModel.java:219)
	at models.scores.Score.removeScoreLink(Score.java:307)
	at controllers.ScoreController.doEdit(ScoreController.java:366)
	at play.mvc.ActionInvoker.invokeWithContinuation(ActionInvoker.java:540)
	at play.mvc.ActionInvoker.invoke(ActionInvoker.java:498)
	at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:474)
	at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:469)
	at play.mvc.ActionInvoker.invoke(ActionInvoker.java:157)
	... 1 more
Caused by: org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1
	at org.hibernate.jdbc.Expectations$BasicExpectation.checkBatched(Expectations.java:85)
	at org.hibernate.jdbc.Expectations$BasicExpectation.verifyOutcome(Expectations.java:70)
	at org.hibernate.jdbc.BatchingBatcher.checkRowCounts(BatchingBatcher.java:90)
	at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:268)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:189)
	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:345)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
	at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:795)
	... 10 more