Error opening /sg/edu/sim/portal/portlets/breadcrumb/BreadcrumbController.jpf.
The source of this error is:
com.bea.portlet.adapter.scopedcontent.ActionLookupFailedException: javax.servlet.ServletException: java.lang.NullPointerException
	at com.bea.portlet.adapter.scopedcontent.ScopedContentCommonSupport.executeAction(ScopedContentCommonSupport.java:721)
	at com.bea.portlet.adapter.scopedcontent.ScopedContentCommonSupport.renderInternal(ScopedContentCommonSupport.java:265)
	at com.bea.portlet.adapter.scopedcontent.PageFlowStubImpl.render(PageFlowStubImpl.java:137)
	at com.bea.netuix.servlets.controls.content.NetuiContent.preRender(NetuiContent.java:301)
	at com.bea.netuix.nf.ControlLifecycle$6.visit(ControlLifecycle.java:429)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:727)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walk(ControlTreeWalker.java:146)
	at com.bea.netuix.nf.Lifecycle.run(Lifecycle.java:162)
	at com.bea.netuix.servlets.manager.PortalServlet.service(PortalServlet.java:993)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:821)
	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
	at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:27)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at com.bea.portal.tools.servlet.http.HttpContextFilter.doFilter(HttpContextFilter.java:60)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at com.bea.jsptools.servlet.PagedResultServiceFilter.doFilter(PagedResultServiceFilter.java:83)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at com.bea.content.manager.servlets.ContentServletFilter.doFilter(ContentServletFilter.java:178)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at com.bea.p13n.servlets.PortalServletFilter.doFilter(PortalServletFilter.java:338)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at sg.edu.sim.portal.servlets.filter.CheckHackerUrlFilter.doFilter(CheckHackerUrlFilter.java:57)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at sg.edu.sim.portal.servlets.filter.CheckMobileInvalidUrlFilter.doFilter(CheckMobileInvalidUrlFilter.java:110)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696)
	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
	at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)
Caused by: javax.servlet.ServletException: java.lang.NullPointerException
	at org.apache.beehive.netui.util.internal.ServletUtils.throwServletException(ServletUtils.java:165)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processInternal(PageFlowRequestProcessor.java:582)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.process(PageFlowRequestProcessor.java:853)
	at org.apache.beehive.netui.pageflow.AutoRegisterActionServlet.process(AutoRegisterActionServlet.java:631)
	at org.apache.beehive.netui.pageflow.PageFlowActionServlet.process(PageFlowActionServlet.java:158)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
	at org.apache.beehive.netui.pageflow.PageFlowUtils.strutsLookup(PageFlowUtils.java:1199)
	at org.apache.beehive.netui.pageflow.PageFlowUtils.strutsLookup(PageFlowUtils.java:1129)
	at com.bea.portlet.adapter.scopedcontent.framework.internal.PageFlowUtilsBeehiveDelegate.strutsLookupInternal(PageFlowUtilsBeehiveDelegate.java:43)
	at com.bea.portlet.adapter.scopedcontent.framework.PageFlowUtils.strutsLookup(PageFlowUtils.java:108)
	at com.bea.portlet.adapter.scopedcontent.ScopedContentCommonSupport.executeAction(ScopedContentCommonSupport.java:707)
	at com.bea.portlet.adapter.scopedcontent.ScopedContentCommonSupport.renderInternal(ScopedContentCommonSupport.java:265)
	at com.bea.portlet.adapter.scopedcontent.PageFlowStubImpl.render(PageFlowStubImpl.java:137)
	at com.bea.netuix.servlets.controls.content.NetuiContent.preRender(NetuiContent.java:292)
	at com.bea.netuix.nf.ControlLifecycle$6.visit(ControlLifecycle.java:428)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:727)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walk(ControlTreeWalker.java:146)
	at com.bea.netuix.nf.Lifecycle.processLifecycles(Lifecycle.java:399)
	at com.bea.netuix.nf.Lifecycle.processLifecycles(Lifecycle.java:361)
	at com.bea.netuix.nf.Lifecycle.runOutbound(Lifecycle.java:208)
	at com.bea.netuix.nf.Lifecycle.run(Lifecycle.java:162)
	at com.bea.netuix.servlets.manager.UIServlet.runLifecycle(UIServlet.java:465)
	at com.bea.netuix.servlets.manager.UIServlet.processControlTree(UIServlet.java:373)
	at com.bea.netuix.servlets.manager.PortalServlet.service(PortalServlet.java:993)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
	at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
	at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at com.bea.portal.tools.servlet.http.HttpContextFilter.doFilter(HttpContextFilter.java:60)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at com.bea.jsptools.servlet.PagedResultServiceFilter.doFilter(PagedResultServiceFilter.java:82)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at com.bea.content.manager.servlets.ContentServletFilter.doFilter(ContentServletFilter.java:178)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at com.bea.p13n.servlets.PortalServletFilter.doFilter(PortalServletFilter.java:336)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at sg.edu.sim.portal.servlets.filter.CheckHackerUrlFilter.doFilter(CheckHackerUrlFilter.java:55)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at sg.edu.sim.portal.servlets.filter.CheckMobileInvalidUrlFilter.doFilter(CheckMobileInvalidUrlFilter.java:109)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3730)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696)
	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2273)
	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
	... 1 more
Caused by: java.lang.NullPointerException
	at com.bea.portlet.GenericURL.addParameter(GenericURL.java:1087)
	at com.bea.portlet.GenericURL.addParameter(GenericURL.java:1056)
	at com.bea.portlet.GenericURL.addParameter(GenericURL.java:1028)
	at sg.edu.sim.portal.portlets.breadcrumb.BreadcrumbController.buildMbBreadcrumbPgUrl(BreadcrumbController.java:171)
	at sg.edu.sim.portal.portlets.breadcrumb.BreadcrumbController.begin(BreadcrumbController.java:62)
	at sun.reflect.GeneratedMethodAccessor6694.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.beehive.netui.pageflow.FlowController.invokeActionMethod(FlowController.java:879)
	at org.apache.beehive.netui.pageflow.FlowController.getActionMethodForward(FlowController.java:809)
	at org.apache.beehive.netui.pageflow.FlowController.internalExecute(FlowController.java:478)
	at org.apache.beehive.netui.pageflow.PageFlowController.internalExecute(PageFlowController.java:306)
	at org.apache.beehive.netui.pageflow.FlowController.execute(FlowController.java:336)
	at org.apache.beehive.netui.pageflow.internal.FlowControllerAction.execute(FlowControllerAction.java:52)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.access$201(PageFlowRequestProcessor.java:97)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor$ActionRunner.execute(PageFlowRequestProcessor.java:2044)
	at org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionInterceptors$WrapActionInterceptorChain.continueChain(ActionInterceptors.java:64)
	at org.apache.beehive.netui.pageflow.interceptor.action.ActionInterceptor.wrapAction(ActionInterceptor.java:184)
	at org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionInterceptors$WrapActionInterceptorChain.invoke(ActionInterceptors.java:50)
	at org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionInterceptors$WrapActionInterceptorChain.continueChain(ActionInterceptors.java:58)
	at org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionInterceptors.wrapAction(ActionInterceptors.java:87)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processActionPerform(PageFlowRequestProcessor.java:2116)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processInternal(PageFlowRequestProcessor.java:556)
	... 63 more

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Error opening /sg/edu/sim/portal/portlets/siteStudioEditor/SiteStudioEditorController.jpf.
The source of this error is:
com.bea.portlet.adapter.scopedcontent.ActionLookupFailedException: javax.servlet.ServletException: java.lang.NullPointerException
	at com.bea.portlet.adapter.scopedcontent.ScopedContentCommonSupport.executeAction(ScopedContentCommonSupport.java:721)
	at com.bea.portlet.adapter.scopedcontent.ScopedContentCommonSupport.renderInternal(ScopedContentCommonSupport.java:265)
	at com.bea.portlet.adapter.scopedcontent.PageFlowStubImpl.render(PageFlowStubImpl.java:137)
	at com.bea.netuix.servlets.controls.content.NetuiContent.preRender(NetuiContent.java:301)
	at com.bea.netuix.nf.ControlLifecycle$6.visit(ControlLifecycle.java:429)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:727)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:736)
	at com.bea.netuix.nf.ControlTreeWalker.walk(ControlTreeWalker.java:146)
	at com.bea.netuix.nf.Lifecycle.run(Lifecycle.java:162)
	at com.bea.netuix.servlets.manager.PortalServlet.service(PortalServlet.java:993)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:821)
	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
	at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:27)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at com.bea.portal.tools.servlet.http.HttpContextFilter.doFilter(HttpContextFilter.java:60)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at com.bea.jsptools.servlet.PagedResultServiceFilter.doFilter(PagedResultServiceFilter.java:83)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at com.bea.content.manager.servlets.ContentServletFilter.doFilter(ContentServletFilter.java:178)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at com.bea.p13n.servlets.PortalServletFilter.doFilter(PortalServletFilter.java:338)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at sg.edu.sim.portal.servlets.filter.CheckHackerUrlFilter.doFilter(CheckHackerUrlFilter.java:57)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at sg.edu.sim.portal.servlets.filter.CheckMobileInvalidUrlFilter.doFilter(CheckMobileInvalidUrlFilter.java:110)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696)
	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
	at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)
Caused by: javax.servlet.ServletException: java.lang.NullPointerException
	at org.apache.beehive.netui.util.internal.ServletUtils.throwServletException(ServletUtils.java:165)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processInternal(PageFlowRequestProcessor.java:582)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.process(PageFlowRequestProcessor.java:853)
	at org.apache.beehive.netui.pageflow.AutoRegisterActionServlet.process(AutoRegisterActionServlet.java:631)
	at org.apache.beehive.netui.pageflow.PageFlowActionServlet.process(PageFlowActionServlet.java:158)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
	at org.apache.beehive.netui.pageflow.PageFlowUtils.strutsLookup(PageFlowUtils.java:1199)
	at org.apache.beehive.netui.pageflow.PageFlowUtils.strutsLookup(PageFlowUtils.java:1129)
	at com.bea.portlet.adapter.scopedcontent.framework.internal.PageFlowUtilsBeehiveDelegate.strutsLookupInternal(PageFlowUtilsBeehiveDelegate.java:43)
	at com.bea.portlet.adapter.scopedcontent.framework.PageFlowUtils.strutsLookup(PageFlowUtils.java:108)
	at com.bea.portlet.adapter.scopedcontent.ScopedContentCommonSupport.executeAction(ScopedContentCommonSupport.java:707)
	at com.bea.portlet.adapter.scopedcontent.ScopedContentCommonSupport.renderInternal(ScopedContentCommonSupport.java:265)
	at com.bea.portlet.adapter.scopedcontent.PageFlowStubImpl.render(PageFlowStubImpl.java:137)
	at com.bea.netuix.servlets.controls.content.NetuiContent.preRender(NetuiContent.java:292)
	at com.bea.netuix.nf.ControlLifecycle$6.visit(ControlLifecycle.java:428)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:727)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walkRecursivePreRender(ControlTreeWalker.java:739)
	at com.bea.netuix.nf.ControlTreeWalker.walk(ControlTreeWalker.java:146)
	at com.bea.netuix.nf.Lifecycle.processLifecycles(Lifecycle.java:399)
	at com.bea.netuix.nf.Lifecycle.processLifecycles(Lifecycle.java:361)
	at com.bea.netuix.nf.Lifecycle.runOutbound(Lifecycle.java:208)
	at com.bea.netuix.nf.Lifecycle.run(Lifecycle.java:162)
	at com.bea.netuix.servlets.manager.UIServlet.runLifecycle(UIServlet.java:465)
	at com.bea.netuix.servlets.manager.UIServlet.processControlTree(UIServlet.java:373)
	at com.bea.netuix.servlets.manager.PortalServlet.service(PortalServlet.java:993)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
	at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
	at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at com.bea.portal.tools.servlet.http.HttpContextFilter.doFilter(HttpContextFilter.java:60)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at com.bea.jsptools.servlet.PagedResultServiceFilter.doFilter(PagedResultServiceFilter.java:82)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at com.bea.content.manager.servlets.ContentServletFilter.doFilter(ContentServletFilter.java:178)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at com.bea.p13n.servlets.PortalServletFilter.doFilter(PortalServletFilter.java:336)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at sg.edu.sim.portal.servlets.filter.CheckHackerUrlFilter.doFilter(CheckHackerUrlFilter.java:55)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at sg.edu.sim.portal.servlets.filter.CheckMobileInvalidUrlFilter.doFilter(CheckMobileInvalidUrlFilter.java:109)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3730)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696)
	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2273)
	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
	... 1 more
Caused by: java.lang.NullPointerException
	at sg.edu.sim.portal.portlets.siteStudioEditor.SiteStudioEditorController.begin(SiteStudioEditorController.java:122)
	at sun.reflect.GeneratedMethodAccessor6641.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.beehive.netui.pageflow.FlowController.invokeActionMethod(FlowController.java:879)
	at org.apache.beehive.netui.pageflow.FlowController.getActionMethodForward(FlowController.java:809)
	at org.apache.beehive.netui.pageflow.FlowController.internalExecute(FlowController.java:478)
	at org.apache.beehive.netui.pageflow.PageFlowController.internalExecute(PageFlowController.java:306)
	at org.apache.beehive.netui.pageflow.FlowController.execute(FlowController.java:336)
	at org.apache.beehive.netui.pageflow.internal.FlowControllerAction.execute(FlowControllerAction.java:52)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.access$201(PageFlowRequestProcessor.java:97)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor$ActionRunner.execute(PageFlowRequestProcessor.java:2044)
	at org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionInterceptors$WrapActionInterceptorChain.continueChain(ActionInterceptors.java:64)
	at org.apache.beehive.netui.pageflow.interceptor.action.ActionInterceptor.wrapAction(ActionInterceptor.java:184)
	at org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionInterceptors$WrapActionInterceptorChain.invoke(ActionInterceptors.java:50)
	at org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionInterceptors$WrapActionInterceptorChain.continueChain(ActionInterceptors.java:58)
	at org.apache.beehive.netui.pageflow.interceptor.action.internal.ActionInterceptors.wrapAction(ActionInterceptors.java:87)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processActionPerform(PageFlowRequestProcessor.java:2116)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
	at org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processInternal(PageFlowRequestProcessor.java:556)
	... 63 more