Keith Wall created QPID-5796:
--------------------------------
Summary: ConnectionRegistry may suffer an ArrayIndexOutOfBounds if
closed at the same moment as a messaging connection is closed
Key: QPID-5796
URL: https://issues.apache.org/jira/browse/QPID-5796
Project: Qpid
Issue Type: Bug
Components: Java Broker
Affects Versions: 0.29
Reporter: Keith Wall
If the closure of the ConnectionRegistry races with a incoming connection
close, there is the possibility of the a AIOOBException within the
close(replyText) method.
This issue is longstanding, but could previously only manifest on Broker
shutdown. With recent work on 0.29, it is now possible for the user to stop
the virtual host (or virtualhostnode) at runtime, meaning this problem could
manifest at non-shutdown situations too.
{code:java}
public void close(final String replyText)
{
synchronized(this)
{
for(AMQConnectionModel conn : _registry)
{
conn.stop();
}
}
if (_logger.isDebugEnabled())
{
_logger.debug("Closing connection registry :" + _registry.size() +
" connections.");
}
while (!_registry.isEmpty())
{
# <---- another thread closes a connection
AMQConnectionModel connection = _registry.get(0); # !#% AIOOB
closeConnection(connection, AMQConstant.CONNECTION_FORCED,
replyText);
}
}
{code}
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