Do you do any customize action in SinglePoolMatchAllConnectionInterceptor.internalGetConnection? It looks like connection pool size has been updated. Suggest to double check your multi thread implementation. For example, debug to track the change of pool size.
2015-10-28 15:21 GMT+08:00 sjunejo <junejo.shee...@gmail.com>: > Hi, > > I am using Jencks 2.2 with geronimo-connector 2.1.2 implementation. I am > using this with custom JCA RA implementation and recently when I started > this in a heavily used multi threaded environment I am getting following > exception; > > java.util.ConcurrentModificationException > at > > java.util.IdentityHashMap$IdentityHashMapIterator.nextIndex(IdentityHashMap.java:732) > at > java.util.IdentityHashMap$KeyIterator.next(IdentityHashMap.java:822) > at > > com.jbase.jremote.jca.JRemoteManagedConnectionFactory.matchManagedConnections(Unknown > Source) > at > > org.apache.geronimo.connector.outbound.SinglePoolMatchAllConnectionInterceptor.internalGetConnection(SinglePoolMatchAllConnectionInterceptor.java:61) > at > > org.apache.geronimo.connector.outbound.AbstractSinglePoolConnectionInterceptor.getConnection(AbstractSinglePoolConnectionInterceptor.java:80) > at > > org.apache.geronimo.connector.outbound.TransactionEnlistingInterceptor.getConnection(TransactionEnlistingInterceptor.java:46) > at > > org.apache.geronimo.connector.outbound.TransactionCachingInterceptor.getConnection(TransactionCachingInterceptor.java:96) > at > > org.apache.geronimo.connector.outbound.ConnectionHandleInterceptor.getConnection(ConnectionHandleInterceptor.java:43) > at > > org.apache.geronimo.connector.outbound.TCCLInterceptor.getConnection(TCCLInterceptor.java:39) > at > > org.apache.geronimo.connector.outbound.AbstractConnectionManager.allocateConnection(AbstractConnectionManager.java:87) > at > com.jbase.jremote.jca.JRemoteConnectionFactoryImpl.getConnection(Unknown > Source) > at > com.jbase.jremote.jca.JRemoteConnectionFactoryImpl.getConnection(Unknown > Source) > > I looked at the source but as far as I can see we are using IdentityHashMap > but we do synchronize(pool) just before calling the matchManagedConnections > method on my connection factory. > > Does anyone in the mailing encounter this....how can I solve this? > > Regards > > > > -- > View this message in context: > http://apache-geronimo.328035.n3.nabble.com/ConcurrentModificationException-from-SinglePoolMatchAllConnectionInterceptor-tp3989671.html > Sent from the Users mailing list archive at Nabble.com. > -- Best Regards Gary
