JDBC Deadlock in ORACLETIMEOUTTHREADPERVM and T4CCONNECTION when Using JDBC 11.2 with WebLogic 10.3 or 12.1 (Doc ID 1423425.1)

Last updated on JUNE 05, 2023

Applies to:

Symptoms

When using JDBC 11.2.0.2 from a WebLogic Server 10.3.4 application or JDBC 11.2.0.3 bundled with WebLogic Server 10.3.6.0, 12.1.1.0, and 12.1.2.0 , the following deadlock is generated:


DEADLOCK DETECTED:
==================

[deadlocked thread] [STUCK] ExecuteThread: '115' for queue: 'weblogic.kernel.Default (self-tuning)':
---------------------------------------------------------------------------------------------------
Thread '[STUCK] ExecuteThread: '115' for queue: 'weblogic.kernel.Default (self-tuning)'' is waiting to acquire lock 'oracle.jdbc.driver.OracleTimeoutThreadPerVM@163e11' that is held by thread 'OracleTimeoutPollingThread'

Stack trace:
------------
oracle.jdbc.driver.OracleTimeoutThreadPerVM.cancelTimeout(OracleTimeoutThreadPerVM.java:116)
oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1354)
oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3576)
oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3657)
oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1350)
weblogic.jdbc.wrapper.PreparedStatement.executeUpdate(PreparedStatement.java:172)
org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2594)
org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2494)
org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2821)
org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:113)
org.hibernate.engine.ActionQueue.execute(ActionQueue.java:273)
org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:265)
org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:185)
org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:795)
sun.reflect.GeneratedMethodAccessor880.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
...

[deadlocked thread] OracleTimeoutPollingThread:
----------------------------------------------
Thread 'OracleTimeoutPollingThread' is waiting to acquire lock 'oracle.jdbc.driver.T4CConnection@303d1a' that is held by thread '[STUCK] ExecuteThread: '115' for queue: 'weblogic.kernel.Default (self-tuning)''

Stack trace:
------------
oracle.jdbc.driver.PhysicalConnection.setUsable(PhysicalConnection.java:10908)
oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:121)
oracle.jdbc.driver.DatabaseError.createSqlException(DatabaseError.java:191)
oracle.jdbc.driver.DatabaseError.createSqlException(DatabaseError.java:258)
oracle.jdbc.driver.DatabaseError.createSqlException(DatabaseError.java:482)
oracle.jdbc.driver.T4CConnection.cancelOperationOnServer(T4CConnection.java:886)
oracle.jdbc.driver.OracleStatement.doCancel(OracleStatement.java:3296)
oracle.jdbc.driver.OracleStatement.cancel(OracleStatement.java:3266)
oracle.jdbc.driver.OracleTimeoutThreadPerVM.interruptIfAppropriate(OracleTimeoutThreadPerVM.java:170)
oracle.jdbc.driver.OracleTimeoutPollingThread.pollOnce(OracleTimeoutPollingThread.java:204)
oracle.jdbc.driver.OracleTimeoutPollingThread.run(OracleTimeoutPollingThread.java:158)

Changes

Cause

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