ISession no longer works once logged in

[jamoore]

Due to the changes in Executor to fix transaction issues, ISession now throws exceptions on some post-login methods:

UnknownUserException: exception ::Ice::UnknownUserException
{
    unknown = omero.AuthenticationException
    reason = "Unknown error (java.lang.IllegalStateException):Already logged in. Use Executor.submit() and .get()."
        at omero.util.IceMapper.handleException(IceMapper.java:1094)
        at ome.services.blitz.util.IceMethodInvoker.invoke(IceMethodInvoker.java:181)
        at ome.services.throttling.Callback.run(Callback.java:55)
        at ome.services.throttling.InThreadThrottlingStrategy.callInvokerOnRawArgs(InThreadThrottlingStrategy.java:37)
        at ome.services.blitz.impl.AbstractAmdServant.callInvokerOnRawArgs(AbstractAmdServant.java:114)
        at ome.services.blitz.impl.SessionI.createSessionWithTimeout_async(SessionI.java:59)
        at omero.api._ISessionTie.createSessionWithTimeout_async(_ISessionTie.java:78)
        at omero.api._ISessionDisp.___createSessionWithTimeout(_ISessionDisp.java:323)
        at omero.api._ISessionDisp.__dispatch(_ISessionDisp.java:541)
        at IceInternal.Incoming.invoke(Incoming.java:166)
        at Ice.ConnectionI.invokeAll(ConnectionI.java:2045)
        at Ice.ConnectionI.message(ConnectionI.java:977)
        at IceInternal.ThreadPool.run(ThreadPool.java:575)
        at IceInternal.ThreadPool.access$100(ThreadPool.java:12)
        at IceInternal.ThreadPool$EventHandlerThread.run(ThreadPool.java:951)

[jmoore]

r3888