[jira] [Created] (QPID-8156) [Broker-J] Heap memory is leaked on deletion of virtual host node

["Alex Rudyy (JIRA)" <ji...@apache.org>]

Alex Rudyy created QPID-8156:
--------------------------------

             Summary: [Broker-J] Heap memory is leaked on deletion of virtual host node
                 Key: QPID-8156
                 URL: https://issues.apache.org/jira/browse/QPID-8156
             Project: Qpid
          Issue Type: Improvement
          Components: Broker-J
    Affects Versions: qpid-java-broker-7.0.3, qpid-java-broker-7.1.0
            Reporter: Alex Rudyy


{{SystemNodeRegistry}} of deleted {{VirtualHost}} is still referenced after virtual host node deletion. It prevents its garbage collection. The reference to registry is hold by {{TrustStoreMessageSourceCreator$TrustStoreChangeListener}} which is registered  on broker as part of invocation {{TrustStoreMessageSourceCreator#register}}.

The user impact is minimalistic as it is not expected that virtual host nodes are often created and deleted in production environment.

Broker restart should resolve the issue.

Steps to reproduce:
 # create BDB HA virtual host node
 # delete BDB HA virtual host node
 # collect heap dump and check references to deleted virtual host node
{noformat}
select * from org.apache.qpid.server.virtualhostnode.berkeleydb.BDBHAVirtualHostNodeImplWithAccessChecking
{noformat}
 



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