Matt,
I will try that. Is it better to build from cvs than to just use the download? If so how do I build from cvs? Are there instructions?
Kevin
-------------- Original message --------------
From: "Matt Raible" <[EMAIL PROTECTED]>
> I recently did fixed some *major* memory leaks in the
> VelocityMenuDisplayer - you might try building from CVS - or using the
> attached struts-menu.jar.
>
> Matt
>
> On 3/3/06, Kevin Drennen ([EMAIL PROTECTED])
> <[EMAIL PROTECTED]>wrote:
> >
> > We are doing testing in our application using the struts-menu implementation
> > using the velocity templates rendering an Xtree (like this example:
> > http://demo.raibledesigns.com/struts-menu/velocity-xtree.jsp).
> > When we test simulating 20 concurrent users on the system we enounter a
> > java.util.ConcurrentModificationException error (see
> > below). Any thoughts on how to fix this?
> > > >
> >
> > 2006-03-03 09:07:51,375 - VelocimacroProxy.render() : exception VM =
> > #displayMenu() : java.util.ConcurrentModificationException
> >
> > at
> > java.util.AbstractList$Itr.checkForComodification(AbstractList.java(Inlined
> > Compiled Code))
> >
> > at java.util.AbstractList$Itr.next(AbstractList.java(Compiled
> > Code))
> >
> > at
> > org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:203)
> >
> > at
> >
> org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:15
> 2)
> >
> > at
> > org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java(Compiled
> > Code))
> >
> > at
> >
> org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.jav > a(Compiled
> > Code))
> >
> > at
> >
> org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java(Compil
> ed
> > Code))
> >
> > at
> >
> org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.j
> ava:210)
> >
> > at
> >
> org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:15
> 2)
> >
> > at
> >
> org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java(Compil
> ed
> > Code))
> >
> > at
> > org.apache.velocity.Template.merge(Template.java(Compiled
> > Code))
> >
> > at
> >
> net.sf.navigator.displayer.VelocityMenuDisplayer.displayComponents(VelocityMenuD
> isplayer.java(Compiled
> > Code)) > >
> > at
> >
> net.sf.navigator.displayer.VelocityMenuDisplayer.display(VelocityMenuDisplayer.j
> ava:99)
> >
> > at
> > net.sf.navigator.taglib.DisplayMenuTag.doStartTag(DisplayMenuTag.java:130)
> >
> > at
> >
> com.ibm._jsp._side_5F_secure._jspx_meth_menu_displayMenu_3(_side_5F_secure.java:
> 180)
> >
> > at
> >
> com.ibm._jsp._side_5F_secure._jspx_meth_menu_useMenuDisplayer_0(_side_5F_secure.
> java:230)
> >
> > at
> > com.ibm._jsp._side_5F_secure._jspService(_side_5F_secure.java:104)
> >
> > at
> > com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:88)
> >
> > at
> > javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> >
> > at
> >
> com.ibm.ws.cache.servlet.ServletWra pper.serviceProxied(ServletWrapper.java:242)
> >
> > at
> > com.ibm.ws.cache.servlet.CacheHook.handleFragment(CacheHook.java:326)
> >
> > at
> > com.ibm.ws.cache.servlet.CacheHook.handleServlet(CacheHook.java:211)
> >
> > at
> > com.ibm.ws.cache.servlet.ServletWrapper.service(ServletWrapper.java:224)
> >
> > at
> >
> com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1221)
> >
> > at
> >
> com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java
> :630)
> >
> > at
> >
> com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericSe
> rvletWrapper.java:117)
> >
> > at
> >
> com.ibm.ws.jsp.webcontainerext.JSPExtensionServletWrapper.handleRequest(JSPExten
> s ionServletWrapper.java:173)
> >
> > at
> >
> com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.include(WebAppRequestDisp
> atcher.java:579)
> >
> > at
> >
> org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:1034)
> >
> > at
> > org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:475)
> >
> > at
> > org.apache.struts.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:101)
> >
> > at
> > org.apache.struts.tiles.TilesUtil.doInclude(TilesUtil.java:137)
> >
> > at
> > org.apache.struts.taglib.tiles.InsertTag.doInclude(InsertTag.java:758)
> >
> > at
> >
> org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.java:8
> 90)
> >
> > at
> > org.apach e.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:460)
> >
> > at
> >
> com.ibm._jsp._base_5F_summary._jspx_meth_tiles_get_2(_base_5F_summary.java:575)
> >
> > at
> > com.ibm._jsp._base_5F_summary._jspService(_base_5F_summary.java:292)
> >
> > at
> > com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:88)
> >
> > at
> > javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> >
> > at
> >
> com.ibm.ws.cache.servlet.ServletWrapper.serviceProxied(ServletWrapper.java:242)
> >
> > at
> > com.ibm.ws.cache.servlet.CacheHook.handleFragment(CacheHook.java:326)
> >
> > at
> > com.ibm.ws.cache.servlet.CacheHook.handleServlet(CacheHook.java:211)
> >
> > at
> > com.ibm.ws.cache.servlet.ServletWrapper.service(ServletWr apper.java:224)
> >
> > at
> >
> com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1221)
> >
> > at
> >
> com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java
> :630)
> >
> > at
> >
> com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericSe
> rvletWrapper.java:117)
> >
> > at
> >
> com.ibm.ws.jsp.webcontainerext.JSPExtensionServletWrapper.handleRequest(JSPExten
> sionServletWrapper.java:173)
> >
> > at
> >
> com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDisp
> atcher.java:262)
> >
> > at
> >
> org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1056)
> >
> > at
> >
> org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.ja
> va:261)
> >
> > at
> >
> org.apache.struts.tiles.TilesRequestProcessor.processTilesDefinition(TilesReques
> tProcessor.java:237)
> >
> > at
> >
> org.apache.struts.tiles.TilesRequestProcessor.internalModuleRelativeForward(Tile
> sRequestProcessor.java:339)
> >
> > at
> >
> org.apache.struts.action.RequestProcessor.processForward(RequestProcessor.java:5
> 53)
> >
> > at
> > org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:211)
> >
> > at
> > org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
> >
> > at
> > org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:397)
> >
> > at
> > javax.s ervlet.http.HttpServlet.service(HttpServlet.java:743)
> >
> > at
> > javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> >
> > at
> >
> com.ibm.ws.cache.servlet.ServletWrapper.serviceProxied(ServletWrapper.java:242)
> >
> > at
> > com.ibm.ws.cache.servlet.CacheHook.handleFragment(CacheHook.java:326)
> >
> > at
> > com.ibm.ws.cache.servlet.CacheHook.handleServlet(CacheHook.java:211)
> >
> > at
> > com.ibm.ws.cache.servlet.ServletWrapper.service(ServletWrapper.java:224)
> >
> > at
> >
> com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1221)
> >
> > at
> >
> com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java
> :630)
> >
> > at
> >
> com.ibm.w s.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDisp
> atcher.java:262)
> >
> > at
> >
> org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1056)
> >
> > at
> >
> org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.ja
> va:261)
> >
> > at
> >
> org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.
> java:388)
> >
> > at
> >
> org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestP
> rocessor.java:316)
> >
> > at
> > org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:231)
> >
> > at
> > org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
> >
> > at
> > org. apache.struts.action.ActionServlet.doGet(ActionServlet.java:397)
> >
> > at
> > javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
> >
> > at
> > javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> >
> > at
> >
> com.ibm.ws.cache.servlet.ServletWrapper.serviceProxied(ServletWrapper.java:242)
> >
> > at
> > com.ibm.ws.cache.servlet.CacheHook.handleFragment(CacheHook.java:326)
> >
> > at
> > com.ibm.ws.cache.servlet.CacheHook.handleServlet(CacheHook.java:211)
> >
> > at
> > com.ibm.ws.cache.servlet.ServletWrapper.service(ServletWrapper.java:224)
> >
> > at
> >
> com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1221)
> >
> > at
> >
> com.ibm.ws.webcontainer.servlet.ServletWra pper.handleRequest(ServletWrapper.java
> :630)
> >
> > at
> > com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:2872)
> >
> > at
> > com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:220)
> >
> > at
> > com.ibm.ws.webcontainer.VirtualHost.handleRequest(VirtualHost.java:204)
> >
> > at
> > com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:1779)
> >
> > at
> > com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:77)
> >
> > at
> >
> com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpIn
> boundLink.java:466)
> >
> > at
> >
> com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpIn
> boundLink.java:405)
> >
> > at
> >
> com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCal
> lback.java:104)
> >
> > at
> >
> com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(WorkQueueManager.ja
> va(Compiled
> > Code))
> >
> > at
> >
> com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueueManager.java(Com
> piled
> > Code))
> >
> > at
> >
> com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueueManager.java:941
> )
> >
> > at
> >
> com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueueManager.java:10
> 28)
> >
> > at
> > com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1394)
> >
> >
>
