Can someone explain me, why this happens , and _what I should to do,
in order to avoid this problem:
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[org.jboss.resource.connectionmanager.JBossManagedConnectionPool]
Exception destroying ManagedConnection
javax.resource.ResourceException: Can't detach from db:
org.firebirdsql.gds.GDSException: invalid database handle (no active
connection)
at
org.firebirdsql.jca.FBManagedConnection.destroy(FBManagedConnection.java:327)

at
org.jboss.resource.connectionmanager.InternalManagedConnectionPool.doDestroy(InternalManagedConnectionPool.java:268)

at
org.jboss.resource.connectionmanager.InternalManagedConnectionPool.removeTimedOut(InternalManagedConnectionPool.java:186)

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