小编Ell*_*ero的帖子

我在运行应用程序时遇到了这种错误.它偶尔发生,所以我不知道我的代码到底是什么错误.该例外并未说明任何明确的细节.

堆栈跟踪的一部分.

java.lang.IllegalStateException: Trying to return an unknown connection2! org.jboss.resource.adapter.jdbc.jdk6.WrappedConnectionJDK6@c74ff1
    at org.jboss.resource.connectionmanager.CachedConnectionManager.unregisterConnection(CachedConnectionManager.java:330)
    at org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener.connectionClosed(TxConnectionManager.java:720)
    at org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.closeHandle(BaseWrapperManagedConnection.java:362)
    at org.jboss.resource.adapter.jdbc.WrappedConnection.close(WrappedConnection.java:155)
    at org.hibernate.connection.DatasourceConnectionProvider.closeConnection(DatasourceConnectionProvider.java:97)

在请求帮助之前,有没有人鼓励这个错误.我使用jboss 6,seam 2,jsf 2和richfaces 3.

我正在我的网络应用程序中编写一些单元测试,我希望Enter在点击下载到文本文件按钮之后自动触发我的页面中的按键事件.我怎么能在jQuery或Javascript中做到这一点？

我们的生产环境中存在一个问题,4个线程在HTOP命令中处于100%CPU使用率.为了进一步研究这个问题,我生成了一个Thread转储,以便找到正在吃CPU的线程.

这是我发现的.4个线程具有相同的堆栈跟踪,所有这些都处于RUNNABLE状态.不幸的是,我陷入了调查,因为堆栈跟踪没有引用我的内部代码,它更多地在Richfaces方面.我认为这是JSF呈现页面的部分.

堆栈跟踪.

"ajp-0.0.0.0-8009-47" daemon prio=10 tid=0x00007fb8040af000 nid=0x172c runnable [0x00007fb8b3bf8000]
   java.lang.Thread.State: RUNNABLE
    at java.util.HashMap.hash(HashMap.java:351)
    at java.util.HashMap.putForCreate(HashMap.java:512)
    at java.util.HashMap.putAllForCreate(HashMap.java:534)
    at java.util.HashMap.<init>(HashMap.java:320)
    at org.ajax4jsf.component.UIDataAdaptorBase.createChildStateCopy(UIDataAdaptorBase.java:894)
    at org.ajax4jsf.component.UIDataAdaptorBase.saveState(UIDataAdaptorBase.java:1554)
    at org.richfaces.component.UIDataTable.saveState(UIDataTable.java:181)
    at org.richfaces.component.html.HtmlDataTable.saveState(HtmlDataTable.java:1361)
    at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:1103)
    at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:1119)
    at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:1119)
    at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:1119)
    at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:1119)
    at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:1119)
    at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:1119)
    at javax.faces.component.UIComponentBase.processSaveState(UIComponentBase.java:1119)
    at org.ajax4jsf.component.AjaxViewRoot.processSaveState(AjaxViewRoot.java:751)
    at org.ajax4jsf.application.AjaxStateManager.getComponentStateToSave(AjaxStateManager.java:179)
    at org.ajax4jsf.application.AjaxStateManager.buildViewState(AjaxStateManager.java:515)
    at org.ajax4jsf.application.AjaxStateManager$SeamStateManagerWrapper.saveView(AjaxStateManager.java:106)
    at org.jboss.seam.jsf.SeamStateManager.saveView(SeamStateManager.java:89)
    at org.ajax4jsf.application.AjaxStateManager.saveSerializedView(AjaxStateManager.java:470)
    at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:615)
    at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:100)
    at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:176)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:110)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
    at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.josso.servlet.agent.GenericServletSSOAgentFilter.doFilter(GenericServletSSOAgentFilter.java:558)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) …