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java.lang.NullPointerException at com.atlassian.confluence.pages.Page.toPageContext(Page.java:199) at com.atlassian.confluence.pages.actions.AbstractPreviewPageAction.updateXHtmlContent(AbstractPreviewPageAction.java:64) at com.atlassian.confluence.pages.actions.AddCommentAction.execute(AddCommentAction.java:50) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:166) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.opensymphony.xwork.interceptor.DefaultWorkflowInterceptor.intercept(DefaultWorkflowInterceptor.java:55) at com.atlassian.confluence.core.ConfluenceWorkflowInterceptor.intercept(ConfluenceWorkflowInterceptor.java:34) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34) at com.atlassian.confluence.core.ConfluenceValidationInterceptor.intercept(ConfluenceValidationInterceptor.java:16) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.atlassian.confluence.security.actions.PermissionCheckInterceptor.intercept(PermissionCheckInterceptor.java:40) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.atlassian.confluence.pages.actions.PageAwareInterceptor.intercept(PageAwareInterceptor.java:73) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.atlassian.confluence.core.ConfluenceAutowireInterceptor.intercept(ConfluenceAutowireInterceptor.java:25) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.atlassian.confluence.util.XWorkTransactionInterceptor.intercept(XWorkTransactionInterceptor.java:133) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:34) at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:163) at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:115) at com.opensymphony.webwork.dispatcher.ServletDispatcher.serviceAction(ServletDispatcher.java:278) at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:248) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402) at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27) at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:145) at com.atlassian.confluence.util.profiling.ProfilingPageFilter.parsePage(ProfilingPageFilter.java:146) at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:61) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27) at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:165) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27) at com.atlassian.seraph.filter.LoginFilter.doFilter(LoginFilter.java:181) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27) at com.atlassian.johnson.filters.JohnsonFilter.doFilter(JohnsonFilter.java:96) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27) at org.springframework.orm.hibernate.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:117) at bucket.custom.FlushingSpringSessionInViewFilter.doFilterInternal(FlushingSpringSessionInViewFilter.java:30) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:73) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27) at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java:132) at com.atlassian.confluence.util.error.ProfilingAndErrorFilter.doFilter(ProfilingAndErrorFilter.java:25) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27) at com.atlassian.core.filters.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java:36) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27) at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6356) at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317) at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118) at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3635) at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197) at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)