[jboss-dev-forums] [Design of JBoss Remoting, Unified Invokers] - Bisocket server invoker NPE

[timfox]

We are seeing the following exception intermittently in JBM:


  | 
  | 12:20:32,765 WARN  @Timer-1 [BisocketServerInvoker] org.jboss.remoting.transport.bisocket.BisocketServerInvoker$ControlMonitorTimerTask at ce796: detected failure on control connection Thread[control: Socket[addr=/10.11.14.146,port=2685,localport=3576],5,]: requesting new control connection
  | 12:20:32,843 ERROR @Thread-18 [BisocketServerInvoker] unable to get secondary locator
  | 12:20:32,843 ERROR @Thread-18 [BisocketServerInvoker] Unable to recreate control connection: InvokerLocator [null://10.11.14.146:2685/null]
  | java.io.IOException: unable to get secondary locator: null
  |     at org.jboss.remoting.transport.bisocket.BisocketServerInvoker.createControlConnection(BisocketServerInvoker.java:165)
  |     at org.jboss.remoting.transport.bisocket.BisocketServerInvoker$1.run(BisocketServerInvoker.java:729) 
  | 

Looking at the code, it seems to be swallowing the exception:


  | }
  |          catch (Throwable t)
  |          {
  |             log.error("unable to get secondary locator");
  |             throw new IOException("unable to get secondary locator: " + t.getMessage());
  |          }
  | 

I amended the code, so as not to swallow the exception which revealed the following:


  | 12:38:44,656 WARN  @Timer-1 [BisocketServerInvoker] org.jboss.remoting.transport.bisocket.BisocketServerInvoker$ControlMonitorTimerTask at 45378f: detected failure on control connection Thread[control: Socket[addr=/10.11.14.146,port=3213,localport=3679],5,]: requesting new control connection
  | 12:38:44,859 ERROR @Thread-15 [BisocketServerInvoker] unable to get secondary locator
  | java.lang.NullPointerException
  | 	at org.jboss.remoting.transport.bisocket.BisocketServerInvoker.createControlConnection(BisocketServerInvoker.java:160)
  | 	at org.jboss.remoting.transport.bisocket.BisocketServerInvoker$ControlMonitorTimerTask$1.run(BisocketServerInvoker.java:777)
  | 12:38:44,859 ERROR @Thread-15 [BisocketServerInvoker] Unable to recreate control connection: InvokerLocator [null://10.11.14.146:3213/null]
  | java.io.IOException: unable to get secondary locator: null
  | 	at org.jboss.remoting.transport.bisocket.BisocketServerInvoker.createControlConnection(BisocketServerInvoker.java:166)
  | 	at org.jboss.remoting.transport.bisocket.BisocketServerInvoker$ControlMonitorTimerTask$1.run(BisocketServerInvoker.java:777)
  | 1
  | 

I.e. the client invoker with the id can't be found.

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