2 Replies Latest reply on May 1, 2007 3:59 PM by niranjanv

    Clearspace 1.1.0 - System Error on changing space settings

      Hi,

       

      I changed the settings of a space in Admin Console to include Blog Posts. After this I started getting different kinds of system errors and currently cannot access Clearspace or the Admin Console. Below are the details of some of the errors:

       

       

       

       

      System Error

       

      We're sorry but a serious error has occurred in the system. If you are a system administrator please click "more details" below for more information about this error.

      More Details

       

           

      • Status Code: 500

           

      • Exception Type: null

           

      • Error Message:

           

      • Request URI: /clearspace/blogs-create-post.jspa

           

      • Stack Trace:

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:226)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.filter.SetResponseCharacterEncodingFilter.doFilter(SetResponseCharacterEncodingFilter.java:62)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)

                o com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.JiveActionContextCleanUp.doFilter(JiveActionContextCleanUp.java:46)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.filter.SetRequestCharacterEncodingFilter.doFilter(SetRequestCharacterEncodingFilter.java:73)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o org.directwebremoting.servlet.DwrWebContextFilter.doFilter(DwrWebContextFilter.java:91)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.upgrade.UpgradeFilter.doFilter(UpgradeFilter.java:43)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.base.plugin.PluginFilter.doFilter(PluginFilter.java:71)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.filter.ApplicationInitializedFilter.doFilter(ApplicationInitializedFilter.java:95)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.base.database.dao.DAOContextCleanUpFilter.doFilter(DAOContextCleanUpFilter.java:32)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)

                o org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)

                o org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)

                o org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)

                o org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)

                o org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)

                o org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)

                o org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)

                o org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)

                o org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)

                o org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)

                o java.lang.Thread.run(Thread.java:595)

           

      • javax.servlet.ServletException: Filter execution threw an exception

       

       

       

       

       

       

       

       

       

       

       

      System Error

       

      We're sorry but a serious error has occurred in the system. If you are a system administrator please click "more details" below for more information about this error.

      More Details

       

           

      • Status Code: 500

           

      • Exception Type: null

           

      • Error Message:

           

      • Request URI: /clearspace/index.jspa

           

      • Stack Trace:

                o freemarker.ext.beans.OverloadedMethodModel.exec(OverloadedMethodModel.java:129)

                o freemarker.core.MethodCall._getAsTemplateModel(MethodCall.java:93)

                o freemarker.core.Expression.getAsTemplateModel(Expression.java:89)

                o freemarker.core.Expression.getStringValue(Expression.java:93)

                o freemarker.core.DollarVariable.accept(DollarVariable.java:76)

                o freemarker.core.Environment.visit(Environment.java:196)

                o freemarker.core.MixedContent.accept(MixedContent.java:92)

                o freemarker.core.Environment.visit(Environment.java:196)

                o freemarker.core.IfBlock.accept(IfBlock.java:82)

                o freemarker.core.Environment.visit(Environment.java:196)

                o freemarker.core.MixedContent.accept(MixedContent.java:92)

                o freemarker.core.Environment.visit(Environment.java:196)

                o freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:160)

                o freemarker.core.Environment.visit(Environment.java:351)

                o freemarker.core.IteratorBlock.accept(IteratorBlock.java:95)

                o freemarker.core.Environment.visit(Environment.java:196)

                o freemarker.core.MixedContent.accept(MixedContent.java:92)

                o freemarker.core.Environment.visit(Environment.java:196)

                o freemarker.core.IfBlock.accept(IfBlock.java:82)

                o freemarker.core.Environment.visit(Environment.java:196)

                o freemarker.core.MixedContent.accept(MixedContent.java:92)

                o freemarker.core.Environment.visit(Environment.java:196)

                o freemarker.core.IfBlock.accept(IfBlock.java:82)

                o freemarker.core.Environment.visit(Environment.java:196)

                o freemarker.core.MixedContent.accept(MixedContent.java:92)

                o freemarker.core.Environment.visit(Environment.java:196)

                o freemarker.core.Environment.process(Environment.java:176)

                o freemarker.template.Template.process(Template.java:232)

                o com.opensymphony.webwork.views.freemarker.FreemarkerResult.doExecute(FreemarkerResult.java:153)

                o com.jivesoftware.community.web.webwork.FreemarkerResult.doExecute(FreemarkerResult.java:124)

                o com.opensymphony.webwork.dispatcher.WebWorkResultSupport.execute(WebWorkResultSupport.java:143)

                o com.opensymphony.xwork.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:311)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:206)

                o com.jivesoftware.community.web.webwork.FlashInterceptor.intercept(FlashInterceptor.java:41)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:168)

                o com.opensymphony.xwork.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:115)

                o com.opensymphony.xwork.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.jivesoftware.community.web.webwork.JiveObjectLoaderInterceptor.intercept(JiveObjectLoaderInterceptor.java:55)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.webwork.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:171)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:151)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.jivesoftware.community.web.webwork.JiveIOCInterceptor.intercept(JiveIOCInterceptor.java:640)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.jivesoftware.community.web.webwork.JiveLoginInterceptor.intercept(JiveLoginInterceptor.java:42)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.jivesoftware.community.web.webwork.AuthInterceptor.intercept(AuthInterceptor.java:46)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.jivesoftware.community.action.LocaleInterceptor.intercept(LocaleInterceptor.java:92)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:31)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:186)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.jivesoftware.community.web.webwork.ModuleCheckInterceptor.intercept(ModuleCheckInterceptor.java:49)

                o com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:188)

                o com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:113)

                o com.opensymphony.webwork.dispatcher.DispatcherUtils.serviceAction(DispatcherUtils.java:225)

                o com.opensymphony.webwork.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:202)

                o com.jivesoftware.community.web.webwork.JiveFilterDispatcher.doFilter(JiveFilterDispatcher.java:53)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.filter.SetResponseCharacterEncodingFilter.doFilter(SetResponseCharacterEncodingFilter.java:62)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)

                o com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.JiveActionContextCleanUp.doFilter(JiveActionContextCleanUp.java:46)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.filter.PresenceFilter.doFilter(PresenceFilter.java:106)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.filter.SetRequestCharacterEncodingFilter.doFilter(SetRequestCharacterEncodingFilter.java:73)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o org.directwebremoting.servlet.DwrWebContextFilter.doFilter(DwrWebContextFilter.java:91)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.upgrade.UpgradeFilter.doFilter(UpgradeFilter.java:43)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.base.plugin.PluginFilter.doFilter(PluginFilter.java:71)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.filter.ApplicationInitializedFilter.doFilter(ApplicationInitializedFilter.java:95)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.base.database.dao.DAOContextCleanUpFilter.doFilter(DAOContextCleanUpFilter.java:32)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)

                o org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)

                o org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)

                o org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)

                o org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)

                o org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)

                o org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)

                o org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)

                o org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)

                o org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)

                o org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)

                o java.lang.Thread.run(Thread.java:595)

           

      • freemarker.template.TemplateModelException: Method public static java.lang.String com.jivesoftware.util.StringUtils.getTimeFromLong(long,int) threw an exception

       

       

       

       

       

       

       

       

       

       

       

      System Error

       

      We're sorry but a serious error has occurred in the system. If you are a system administrator please click "more details" below for more information about this error.

      More Details

       

           

      • Status Code: 500

           

      • Exception Type: null

           

      • Error Message:

           

      • Request URI: /clearspace/admin/main.jsp

           

      • Stack Trace:

                o org.apache.jasper.servlet.JspServlet.service(JspServlet.java:272)

                o javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.action.JiveAdminActionFilter.doFilter(JiveAdminActionFilter.java:34)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.opensymphony.webwork.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:189)

                o com.jivesoftware.community.web.webwork.JiveFilterDispatcher.doFilter(JiveFilterDispatcher.java:53)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.filter.SetResponseCharacterEncodingFilter.doFilter(SetResponseCharacterEncodingFilter.java:62)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)

                o com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.JiveActionContextCleanUp.doFilter(JiveActionContextCleanUp.java:46)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.filter.SetRequestCharacterEncodingFilter.doFilter(SetRequestCharacterEncodingFilter.java:73)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o org.directwebremoting.servlet.DwrWebContextFilter.doFilter(DwrWebContextFilter.java:91)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.upgrade.UpgradeFilter.doFilter(UpgradeFilter.java:43)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.base.plugin.PluginFilter.doFilter(PluginFilter.java:71)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.community.web.filter.ApplicationInitializedFilter.doFilter(ApplicationInitializedFilter.java:95)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o com.jivesoftware.base.database.dao.DAOContextCleanUpFilter.doFilter(DAOContextCleanUpFilter.java:32)

                o org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)

                o org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)

                o org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)

                o org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)

                o org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)

                o org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)

                o org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)

                o org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)

                o org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)

                o org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)

                o org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)

                o org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)

                o org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)

                o java.lang.Thread.run(Thread.java:595)

           

      • javax.servlet.ServletException: PermGen space