IndexOutOfBoundsException in org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1720)

Hi, I noticed a strange Exception on my test server using
postgresql-9.0-801.jdbc4 in this code fragment:

QueryExecutorImpl.java:1720 (pendingBindQueue#get(int))
----------
case '2': // Bind Complete (response to Bind)
pgStream.ReceiveInteger4(); // len, discarded
Portal boundPortal =
(Portal)pendingBindQueue.get(bindIndex++);
if (logger.logDebug())
logger.debug(" <=BE BindComplete [" + boundPortal +
"]");
registerOpenPortal(boundPortal);
break;
----------

java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
at java.util.ArrayList.RangeCheck(ArrayList.java:547)
at java.util.ArrayList.get(ArrayList.java:322)
at
org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1720)
at
org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)
at
org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)
at
org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:374)
at
org.postgresql.jdbc2.AbstractJdbc2Connection.execSQLQuery(AbstractJdbc2Connection.java:244)
at
org.postgresql.jdbc2.AbstractJdbc2Connection.execSQLQuery(AbstractJdbc2Connection.java:236)
at
org.postgresql.jdbc2.AbstractJdbc2Connection.getTransactionIsolation(AbstractJdbc2Connection.java:760)
at
com.jolbox.bonecp.ConnectionHandle.getTransactionIsolation(ConnectionHandle.java:633)
at
org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.getConnection(ConnectionFactoryImpl.java:383)
at
org.datanucleus.store.rdbms.ConnectionFactoryImpl$ManagedConnectionImpl.getXAResource(ConnectionFactoryImpl.java:313)
at
org.datanucleus.store.connection.ConnectionManagerImpl.enlistResource(ConnectionManagerImpl.java:389)
at
org.datanucleus.store.connection.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:252)
at
org.datanucleus.store.connection.AbstractConnectionFactory.getConnection(AbstractConnectionFactory.java:60)
at
org.datanucleus.store.AbstractStoreManager.getConnection(AbstractStoreManager.java:441)
at
org.datanucleus.store.AbstractStoreManager.getConnection(AbstractStoreManager.java:410)
at
org.datanucleus.store.rdbms.query.JDOQLQuery.performExecute(JDOQLQuery.java:595)
at org.datanucleus.store.query.Query.executeQuery(Query.java:1789)
at
org.datanucleus.store.query.Query.executeWithArray(Query.java:1665)
at
org.datanucleus.api.jdo.JDOQuery.executeWithArray(JDOQuery.java:312)

I haven't manged to reproduce this issue on my dev machine. But can someone
give me a hint what happens here? What is a Portal and what does it mean if
an IndexOutOfBounds Exception occurs here?

Thanks,

Jan

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