Deadlock in PoolManager
-----------------------
Key: CAY-1513
URL: https://issues.apache.org/jira/browse/CAY-1513
Project: Cayenne
Issue Type: Bug
Components: Core Library
Affects Versions: 3.0
Environment: Linux
Reporter: Laurent Marchal
I'm using cayenne 3.0 ans I'm experiencing a deadlock when I exit my
application. I call PoolManager.dispose() to disconnect all connections, but it
seems if at the same time a pooled connection is returned to the pool then it
deadlocks.
Here is the deadlock as detected by the java console.
Name: Worker-2
State: BLOCKED on com.sma.core.net.opconpoolmana...@197871d owned by: main
Total blocked: 327 Total waited: 475
Stack trace:
org.apache.cayenne.conn.PoolManager.connectionClosed(PoolManager.java:438)
org.apache.cayenne.conn.PooledConnectionImpl.connectionClosedNotification(PooledConnectionImpl.java:181)
- locked java.util.collections$synchronizedrandomaccessl...@12a12fc
org.apache.cayenne.conn.PooledConnectionImpl.returnConnectionToThePool(PooledConnectionImpl.java:146)
org.apache.cayenne.conn.ConnectionWrapper.close(ConnectionWrapper.java:127)
org.apache.cayenne.access.ExternalTransaction.close(ExternalTransaction.java:168)
org.apache.cayenne.access.ExternalTransaction.commit(ExternalTransaction.java:105)
_______________________________________________________________________________________________________
Name: main
State: BLOCKED on java.util.collections$synchronizedrandomaccessl...@12a12fc
owned by: Worker-2
Total blocked: 30 Total waited: 122
Stack trace:
org.apache.cayenne.conn.PooledConnectionImpl.removeConnectionEventListener(PooledConnectionImpl.java:97)
org.apache.cayenne.conn.PoolManager.dispose(OpconPoolManager.java:169)
- locked org.apache.cayenne.conn.poolmana...@197871d
com.sma.core.session.Session.disconnect(Session.java:189)
- locked java.lang.obj...@167a300
com.sma.core.session.Session.logout(Session.java:269)
- locked java.lang.obj...@167a300
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