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https://issues.apache.org/jira/browse/DBCP-224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12499421
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Phil Steitz commented on DBCP-224:
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Stack traces are from dbcp 1.2.1, pool 1.2
> Null delegate possible
> ----------------------
>
> Key: DBCP-224
> URL: https://issues.apache.org/jira/browse/DBCP-224
> Project: Commons Dbcp
> Issue Type: Bug
> Affects Versions: 1.2.2
> Reporter: Anatoliy Salistra
>
> java.lang.NullPointerException
> at
> org.apache.commons.dbcp.DelegatingConnection.setAutoCommit(DelegatingConnection.java:268)
> at
> org.apache.commons.dbcp.PoolableConnectionFactory.activateObject(PoolableConnectionFactory.java:368)
> at
> org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:786)
> at
> org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:95)
> at
> org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540)
> at
> com.gfigroup.fmk.spine.db.NamedDBCPDataSource.getConnection(NamedDBCPDataSource.java:123)
> at
> com.gfigroup.fmk.spine.tx.TransactionContext.createConnection(TransactionContext.java:99)
> at
> com.gfigroup.fmk.spine.tx.TransactionContext.getConnection(TransactionContext.java:75)
> at
> com.gfigroup.fmk.spine.tx.TransactionContext.getConnectionFacility(TransactionContext.java:91)
> at
> com.gfigroup.fmk.spine.tx.AbstractTxObject.getConnectionFacility(AbstractTxObject.java:47)
> at
> com.gfigroup.ts.credit.service.feed.btc.BTCTradeTxObjectImpl.insertTrade(BTCTradeTxObjectImpl.java:104)
> at sun.reflect.GeneratedMethodAccessor49.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at
> com.gfigroup.fmk.spine.tx.TxObjectService$TxObjectStub.invoke(TxObjectService.java:319)
> at $Proxy15.insertTrade(Unknown Source)
> at
> com.gfigroup.ts.credit.service.feed.btc.BTCListenerService.handleTrade(BTCListenerService.java:323)
> at
> com.gfigroup.ts.credit.service.feed.btc.BTCListenerService.handleTradeMessage(BTCListenerService.java:308)
> at
> com.gfigroup.ts.credit.service.feed.btc.BTCListenerService.access$800(BTCListenerService.java:37)
> at
> com.gfigroup.ts.credit.service.feed.btc.BTCListenerService$ProcessTradeMessageTask.run(BTCListenerService.java:512)
> at
> edu.oswego.cs.dl.util.concurrent.QueuedExecutor$RunLoop.run(QueuedExecutor.java:88)
> at java.lang.Thread.run(Unknown Source)
> This happens intermittently and very mysteriously. Eventually our pool
> becomes clogged with "undead" connections like this.
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