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AlfrescoWeb Script Status 500-Internal Error

naveenalfresco
We have Alfresco 3.0 (Stable) installed, and everything works fine. We had developed our sites entirely based on the structure of Alfresco share 3.0 but from time to time we get the following error message "AlfrescoWeb Script Status 500-Internal Error” while retrieving data from a space. We have a hunch that alfresco server doesn't respond or shuts itself randomly.It is even slow while fetching data from a space.
Oct 3, 2011 12:13:18 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 12:13:28 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 12:18:02 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 12:24:29 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 12:27:41 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 12:30:54 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 12:34:07 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 12:37:20 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 12:40:34 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 12:43:46 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 12:46:59 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 12:50:13 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 12:53:26 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 1:56:00 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 2:29:15 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 3:02:31 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 4:50:13 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet feedApiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at org.alfresco.web.site.servlet.WebScriptFeedServlet.service(WebScriptFeedServlet.java:56)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 5:30:23 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet feedApiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at org.alfresco.web.site.servlet.WebScriptFeedServlet.service(WebScriptFeedServlet.java:56)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 6:03:29 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet feedApiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at org.alfresco.web.site.servlet.WebScriptFeedServlet.service(WebScriptFeedServlet.java:56)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 8:44:29 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 9:35:18 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet feedApiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at org.alfresco.web.site.servlet.WebScriptFeedServlet.service(WebScriptFeedServlet.java:56)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 10:51:16 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet feedApiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at org.alfresco.web.site.servlet.WebScriptFeedServlet.service(WebScriptFeedServlet.java:56)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 1:58:43 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet feedApiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at org.alfresco.web.site.servlet.WebScriptFeedServlet.service(WebScriptFeedServlet.java:56)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 3:03:28 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet feedApiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at org.alfresco.web.site.servlet.WebScriptFeedServlet.service(WebScriptFeedServlet.java:56)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 3:33:45 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet apiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 4:03:58 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet feedApiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at org.alfresco.web.site.servlet.WebScriptFeedServlet.service(WebScriptFeedServlet.java:56)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
Oct 3, 2011 5:38:13 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet feedApiServlet threw exception
java.lang.NullPointerException
   at org.alfresco.web.scripts.ProcessorModelHelper.populateModel(ProcessorModelHelper.java:114)
   at org.alfresco.web.scripts.ProcessorModelHelper.populateTemplateModel(ProcessorModelHelper.java:300)
   at org.alfresco.web.scripts.LocalWebScriptRuntimeContainer.getTemplateParameters(LocalWebScriptRuntimeContainer.java:98)
   at org.alfresco.web.scripts.AbstractWebScript.createTemplateParameters(AbstractWebScript.java:390)
   at org.alfresco.web.scripts.AbstractWebScript$1.getStatusModel(AbstractWebScript.java:603)
   at org.alfresco.web.scripts.WebScriptException.getStatusModel(WebScriptException.java:158)
   at org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:170)
   at org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:116)
   at org.alfresco.web.site.servlet.WebScriptFeedServlet.service(WebScriptFeedServlet.java:56)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:619)
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Is there any solution to resolve this issue?

System Specifications:

Model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
Cache size : 2048 KB
Operating system : Linux.
JVM size :1024 MB
alf_data size : 3 Gb
It runs on an inbuilt derby database.

Thanks
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Comments

mikeh
It runs on an inbuilt derby database.
It's difficult to tell from that log trace, but it would be a really good idea to migrate to a "proper" database; partly because Derby does not scale so well, but mostly because it will severely limit your ability to upgrade (we no longer support Derby).

Thanks,
Mike
naveenalfresco
Thanks Mike

We are planning to shift the database to mySQL. Is there anything else apart from this we can work out in order to tweak the performance?

Regards
Naveen
mikeh
The other issue people have with *nix-based operating systems is hitting an open file limit, but I would expect to see this in the log trace.

There are some performance hints here: http://wiki.alfresco.com/wiki/JVM_Tuning

Thanks,
Mike
naveenalfresco
Thanks a lot Mike, we did as you said and it works properly now.I hope the error doesn't occur again.

Regards,
Naveen
naveenalfresco
Dear Mike,
we did as you said and it works properly in mysql database but now we would like to convert the existing data available under derby database to mysql, Is there any possible way or a step by step procedure to convert data from derby to mysql database.

Regards
Naveen
naveenalfresco
Hi,
I had previously mentioned that it works properly with mysql database but we found out that the issue was with the number of users getting invited into a specific site. The site was functioning properly with 30 to 40 invited users but as we kept increasing the users to 100 the site eventually slow down and again we received the 500 error.The issue is only with the user invitation and not due to a node or a space.Please is there any way to speed up the site?
Specifications.
1.5gb ram
30gb hard disk
Linux operation system
Alfresco 3.0 Stable with mysql database
Done the jvm tuning
"export JAVA_OPTS='-Xms512m -Xmx1024m -XX:MaxPermSize=256m -server'"

Regards,
Naveen
mikeh
I would look at increasing the server ram - 1.5gb really isn't that much for an enterprise java server supporting 100 users.

Thanks,
Mike
naveenalfresco
Increased the server ram to 3gb still no use.If two or more users try to access a single site at the same time we receive the 500 error again.
jvm tuning.
export JAVA_OPTS='-Xms1024m -Xmx2048m -XX:MaxPermSize=256m -server'

Regards,
Naveen
mikeh
Please post the 500 error (it may not be the same one as in the first post)