Critical When using SelectorComposer in Tomcat 6 , I tried to simulate the fail-over/didPasssive,active scenario by shutdown/restart tomcat.
When using BindComposer and GenericForwardComposer everything is find and page work as expected after access/restart.
However, when using SelectorComposer, it causes a ConcurrentModificationException when restart tomcat.
and after the restart, the page that uses SelectorComposer cannot run as expected
if show exception after 6.0.1 and 6.5.0, although 6.0.0 doesn't shows exception, but it still cannot work as expected.
>>java.util.ConcurrentModificationException >> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793) >> at java.util.HashMap$ValueIterator.next(HashMap.java:822) >> at org.zkoss.zk.ui.AbstractComponent.didActivate(AbstractComponent.java:2565) >> at org.zkoss.zk.ui.AbstractComponent.sessionDidActivate(AbstractComponent.java:2521) >> at org.zkoss.zk.ui.impl.PageImpl.sessionDidActivate(PageImpl.java:1021) >> at org.zkoss.zk.ui.impl.DesktopImpl.sessDidActivate(DesktopImpl.java:989) >> at org.zkoss.zk.ui.impl.DesktopImpl.sessionDidActivate(DesktopImpl.java:940) >> at org.zkoss.zk.ui.impl.SimpleDesktopCache.sessionDidActivate(SimpleDesktopCache.java:163) >> at org.zkoss.zk.ui.impl.SessionDesktopCacheProvider.sessionDidActivate(SessionDesktopCacheProvider.java:73) >> at org.zkoss.zk.ui.impl.AbstractWebApp.sessionDidActivate(AbstractWebApp.java:337) >> at org.zkoss.zk.ui.http.SimpleSession$2.didActivate(SimpleSession.java:506) >> at org.zkoss.zk.ui.http.WebManager.<init>(WebManager.java:251) >> at org.zkoss.zk.ui.http.HttpSessionListener23.contextInitialized(HttpSessionListener23.java:140) >> at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206) >> at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705) >> at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) >> at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) >> at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601) >> at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943) >> at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778) >> at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504) >> at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317) >> at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324) >> at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) >> at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065) >> at org.apache.catalina.core.StandardHost.start(StandardHost.java:840) >> at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057) >> at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) >> at org.apache.catalina.core.StandardService.start(StandardService.java:525) >> at org.apache.catalina.core.StandardServer.start(StandardServer.java:754) >> at org.apache.catalina.startup.Catalina.start(Catalina.java:595) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> at java.lang.reflect.Method.invoke(Method.java:597) >> at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) >> at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
- relates to
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ZK-1192 SelectorComposer ConcurrentModificationException in GAE
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- Closed
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