I have a portlet that it extends VelocityPortletAction. This, in method buildNormalContext call a javabean. This javabean create a big object ( a Arraylist with 30.000 arraylist inside). When i return this object to buildNormalContext method, this fails and I see this errors:
The error in portlet window: org.apache.turbine.util.TurbineException: Error rendering Velocity template: /controls/html/jetspeed.vm: Invocation of method 'getContent' in class org.apache.jetspeed.portal.security.portlets.CacheableStatefulPortletWrapper threw exception class java.lang.OutOfMemoryError : null and error log is 2004-03-31 09:18:58,229 [http8080-Processor24] ERROR VelocityPortletControl - Exception while creating content org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getContent' in class org.apache.jetspeed.portal.security.portlets.CacheableStatefulPortletWrapper threw exception class java.lang.OutOfMemoryError : null at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:309) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:207) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:250) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:94) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:109) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:94) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:109) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:271) at org.apache.velocity.Template.merge(Template.java:296) at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:492) at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:461) rethrown as org.apache.turbine.util.TurbineException: Error rendering Velocity template: /controls/html/jetspeed.vm: Invocation of method 'getContent' in class org.apache.jetspeed.portal.security.portlets.CacheableStatefulPortletWrapper threw exception class java.lang.OutOfMemoryError : null at org.apache.turbine.services.velocity.TurbineVelocityService.renderingError(TurbineVelocityService.java:535) at org.apache.turbine.services.velocity.TurbineVelocityService.decodeRequest(TurbineVelocityService.java:501) at org.apache.turbine.services.velocity.TurbineVelocityService.handleRequest(TurbineVelocityService.java:338) at org.apache.turbine.services.velocity.TurbineVelocity.handleRequest(TurbineVelocity.java:144) at org.apache.jetspeed.portal.controls.VelocityPortletControl.getContent(VelocityPortletControl.java:169) at sun.reflect.GeneratedMethodAccessor93.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:260) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:207) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:250) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:94) at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:344) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:153) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:94) at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:344) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:153) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:271) at org.apache.velocity.Template.merge(Template.java:296) at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:492) at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:461) at org.apache.turbine.services.velocity.TurbineVelocityService.decodeRequest(TurbineVelocityService.java:496) at org.apache.turbine.services.velocity.TurbineVelocityService.handleRequest(TurbineVelocityService.java:338) at org.apache.turbine.services.velocity.TurbineVelocity.handleRequest(TurbineVelocity.java:144) at org.apache.jetspeed.portal.controllers.VelocityPortletController.getContent(VelocityPortletController.java:137) at org.apache.jetspeed.portal.BasePortletSet.getContent(BasePortletSet.java:386) 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:324) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:260) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:207) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:250) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:271) at org.apache.velocity.Template.merge(Template.java:296) at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:492) at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:461) at org.apache.turbine.services.velocity.TurbineVelocityService.decodeRequest(TurbineVelocityService.java:496) at org.apache.turbine.services.velocity.TurbineVelocityService.handleRequest(TurbineVelocityService.java:338) at org.apache.turbine.services.velocity.TurbineVelocity.handleRequest(TurbineVelocity.java:144) at org.apache.jetspeed.portal.controllers.VelocityPortletController.getContent(VelocityPortletController.java:137) at org.apache.jetspeed.portal.BasePortletSet.getContent(BasePortletSet.java:386) 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:324) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:260) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:207) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:250) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:94) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:271) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:128) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:94) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:109) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:271) at org.apache.velocity.Template.merge(Template.java:296) at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:492) at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:461) at org.apache.turbine.services.velocity.TurbineVelocityService.decodeRequest(TurbineVelocityService.java:496) at org.apache.turbine.services.velocity.TurbineVelocityService.handleRequest(TurbineVelocityService.java:338) at org.apache.turbine.services.velocity.TurbineVelocity.handleRequest(TurbineVelocity.java:144) at org.apache.jetspeed.portal.controls.VelocityPortletControl.getContent(VelocityPortletControl.java:169) at org.apache.jetspeed.util.template.JetspeedTool.getPane(JetspeedTool.java:190) 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:324) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:260) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:207) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:250) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:94) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:271) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:128) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:271) at org.apache.velocity.Template.merge(Template.java:296) at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:492) at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:461) at org.apache.turbine.services.velocity.TurbineVelocityService.decodeRequest(TurbineVelocityService.java:496) at org.apache.turbine.services.velocity.TurbineVelocityService.handleRequest(TurbineVelocityService.java:338) at org.apache.turbine.services.velocity.TurbineVelocity.handleRequest(TurbineVelocity.java:144) at org.apache.turbine.modules.screens.VelocityDirectScreen.buildTemplate(VelocityDirectScreen.java:121) at org.apache.turbine.modules.screens.TemplateScreen.doBuild(TemplateScreen.java:130) at org.apache.turbine.modules.Screen.build(Screen.java:97) at org.apache.turbine.modules.ScreenLoader.eval(ScreenLoader.java:126) at org.apache.turbine.util.template.TemplateScreen.toString(TemplateScreen.java:125) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:321) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:271) at org.apache.velocity.Template.merge(Template.java:296) at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:492) at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:461) at org.apache.turbine.services.velocity.TurbineVelocityService.decodeRequest(TurbineVelocityService.java:496) at org.apache.turbine.services.velocity.TurbineVelocityService.handleRequest(TurbineVelocityService.java:338) at org.apache.turbine.services.velocity.TurbineVelocity.handleRequest(TurbineVelocity.java:144) at org.apache.turbine.modules.layouts.VelocityDirectLayout.doBuild(VelocityDirectLayout.java:105) at org.apache.turbine.modules.Layout.build(Layout.java:91) at org.apache.turbine.modules.LayoutLoader.exec(LayoutLoader.java:122) at org.apache.turbine.modules.pages.DefaultPage.doBuild(DefaultPage.java:166) at org.apache.turbine.modules.Page.build(Page.java:90) at org.apache.turbine.modules.PageLoader.exec(PageLoader.java:122) at org.apache.turbine.Turbine.doGet(Turbine.java:565) at javax.servlet.http.HttpServlet.service(HttpServlet.java:743) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:742) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:506) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:443) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:359) at org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:543) at org.apache.jsp.index_jsp._jspService(index_jsp.java:41) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563) at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:245) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:199) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:195) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:563) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972) at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:209) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:670) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:517) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:575) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:666) at java.lang.Thread.run(Thread.java:534) 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