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Bug
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Resolution: Fixed
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Critical
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8.5.0
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Security Level: Jimmy
Steps to Reproduce
run the attached example with Comet or Websocket server push enabled
(runs automatically)
observe the logs
Current Result
T1 waiting to activate ... T1 begin T2 waiting to activate ... T2 interupted waiting for java.lang.InterruptedException interrupt thread: T2 T2 deactivated T1 done T1 deactivated T3 waiting to activate ... T4 waiting to activate ...
after 1.5 seconds thread T2 is intentionally interrupted while still waiting for desktop activation
(because T1 one is blocking the desktop for 2 seconds) -> OK
after interrupting T2, T3 & T4 keep waiting for a Execution.activation forever (10 minutes) and never get notified to continue, blocking the threads
Expected Result
T3 T4 should continue their task
the log should continue with: (or similar)
T3 waiting to activate ... T3 begin T4 waiting to activate ... T3 done T3 deactivated T4 begin T4 done T4 deactivated
Debug Info
Comet: when closing the browser tab T3/4 finally get notified that the desktop is no longer available
T4 deactivated T3 deactivated T1 waiting to activate ... Exception in thread "T4" org.zkoss.zk.ui.DesktopUnavailableException: Stopped at org.zkoss.zkex.ui.comet.CometServerPush.activate(CometServerPush.java:478) at org.zkoss.zk.ui.impl.DesktopImpl.activateServerPush(DesktopImpl.java:1599) at org.zkoss.zk.ui.Executions.activate(Executions.java:1002) at org.zkoss.zk.ui.Executions.activate(Executions.java:973) at zk.support.bugs.WsInterruptingComposer.lambda$1(Unknown Source) at java.lang.Thread.run(Thread.java:748) Exception in thread "T3" org.zkoss.zk.ui.DesktopUnavailableException: Stopped at org.zkoss.zkex.ui.comet.CometServerPush.activate(CometServerPush.java:478) at org.zkoss.zk.ui.impl.DesktopImpl.activateServerPush(DesktopImpl.java:1599) at org.zkoss.zk.ui.Executions.activate(Executions.java:1002) at org.zkoss.zk.ui.Executions.activate(Executions.java:973) at zk.support.bugs.WsInterruptingComposer.lambda$1(Unknown Source) at java.lang.Thread.run(Thread.java:748)
When using Websocket Server Push the threads T3/T4 never wake up again, even after the browser tab is closed blocking the threads even longer
"T3@3751" prio=5 tid=0x24 nid=NA waiting java.lang.Thread.State: WAITING at java.lang.Object.wait(Object.java:-1) at org.zkoss.zkmax.au.websocket.WebSocketServerPush.checkConnectionReady(WebSocketServerPush.java:255) at org.zkoss.zkmax.au.websocket.WebSocketServerPush.activate(WebSocketServerPush.java:154) at org.zkoss.zk.ui.impl.DesktopImpl.activateServerPush(DesktopImpl.java:1599) at org.zkoss.zk.ui.Executions.activate(Executions.java:1002) at org.zkoss.zk.ui.Executions.activate(Executions.java:973) at zk.support.bugs.WsInterruptingComposer.lambda$1(WsInterruptingComposer.java:43) at zk.support.bugs.WsInterruptingComposer$$Lambda$15.908756461.run(Unknown Source:-1) at java.lang.Thread.run(Thread.java:748)
