lyman liu [https://community.jboss.org/people/lymxiang] created the discussion "What is taskOperationHandler.waitTillDone(5000) suppose to do?" To view the discussion, visit: https://community.jboss.org/message/782749#782749 -------------------------------------------------------------- ... System.out.println("begin"); responseHandler.waitTillDone(5000); System.out.println("end "); ... It means:Print "begin", wait 5000ms, print "end",all right? My question is : How can I  determined the wait time ? if the network is bad, I wait 5000 and then  execute  client.dispose(), it will be throw    exception  that  java.nio.channels.ClosedSelectorException at sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source) at sun.nio.ch.SelectorImpl.select(Unknown Source) at org.apache.mina.transport.socket.nio.NioProcessor.select(NioProcessor.java:70) at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1067) at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Can  u give me  some solutions about it ? Regards. -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/782749#782749] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]