Issue

• JBoss instance is not stopping, hanged in JCA Pool filler thread.
• Periodic Recovery thread is not able to make new connection, trying to acquire lock held by JCA Pool filler thread.

Stack trace :

JCA PoolFiller" daemon prio=3 tid=0x014fd400 nid=0x81 runnable [0x28ebe000..0x28ebf970]
      java.lang.Thread.State: RUNNABLE      at java.net.PlainSocketImpl.socketConnect(Native Method)
      at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
      - locked <0x3d87df68> (a java.net.SocksSocketImpl)
      at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
      at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
      at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
      at java.net.Socket.connect(Socket.java:519)
      at oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:150)
      at oracle.net.nt.ConnOption.connect(ConnOption.java:133)
      at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:370)
      at oracle.net.resolver.AddrResolution.resolveAndExecute(AddrResolution.java:434)
      at oracle.net.ns.NSProtocol.establishConnection(NSProtocol.java:687) 
      at oracle.net.ns.NSProtocol.connect(NSProtocol.java:247)
      at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1102)
      at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:320)
      at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:546)
      at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:236)
      at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
      at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
      at oracle.jdbc.pool.OracleDataSource.getPhysicalConnection(OracleDataSource.java:280)
      at oracle.jdbc.xa.client.OracleXADataSource.getPooledConnection(OracleXADataSource.java:469)
      at oracle.jdbc.xa.client.OracleXADataSource.getXAConnection(OracleXADataSource.java:156)
      at oracle.jdbc.xa.client.OracleXADataSource.getXAConnection(OracleXADataSource.java:130)
      at org.jboss.jca.adapters.jdbc.xa.XAManagedConnectionFactory.getXAManagedConnection(XAManagedConnectionFactory.java:443)
      at org.jboss.jca.adapters.jdbc.xa.XAManagedConnectionFactory.createManagedConnection(XAManagedConnectionFactory.java:397)
      - locked <0x3d401ca8> (a org.jboss.as.connector.subsystems.datasources.AbstractDataSourceService$MyXaMCF)
      at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreArrayListManagedConnectionPool.createConnectionEventListener(SemaphoreArrayListManagedConnectionPool.java:781)
      at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreArrayListManagedConnectionPool.fillToMin(SemaphoreArrayListManagedConnectionPool.java:725)           at org.jboss.jca.core.connectionmanager.pool.mcp.PoolFiller.run(PoolFiller.java:97)
      at java.lang.Thread.run(Thread.java:619)