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When accessing the project's process page in web browser, an internal server error occurs due to a Nullpointer Exception. This was reported on Eclipse Scout forum: http://www.eclipse.org/forums/index.php/mv/msg/216414/689713/#msg_689713. The original post is: Hi, I am absolutely new to scout. I read the tutorials, consumed to webinar and read the documentation as far. Because this project seems to be interesting I installed to minicrm tutorial. After started the server, I try to connect via the browser. While connecting there is a npe thrown: HTTP ERROR 500 Problem accessing /TutorialMiniCrm/process. Reason: INTERNAL_SERVER_ERROR Caused by: java.lang.NullPointerException at org.eclipse.scout.rt.shared.services.common.security.ACCESS.check(Unknown Source) at org.eclipse.scout.rt.server.admin.html.view.ServicesView.isVisible(Unknown Source) at org.eclipse.scout.rt.server.admin.html.view.TopView.produceBody(Unknown Source) at org.eclipse.scout.rt.server.admin.html.AdminSession.serviceRequest(Unknown Source) at org.eclipse.scout.rt.server.ServiceTunnelServlet.doGet(Unknown Source) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.eclipse.scout.http.servletfilter.HttpServletEx.access$0(Unknown Source) at org.eclipse.scout.http.servletfilter.HttpServletEx$1.service(Unknown Source) at org.eclipse.scout.http.servletfilter.internal.FilterChainImpl.doFilter(Unknown Source) at org.eclipse.scout.rt.server.servlet.filter.AbstractChainableSecurityFilter.doFilterInternal(Unknown Source) at org.eclipse.scout.rt.server.servlet.filter.AbstractChainableSecurityFilter.access$0(Unknown Source) at org.eclipse.scout.rt.server.servlet.filter.AbstractChainableSecurityFilter$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Unknown Source) at org.eclipse.scout.rt.server.servlet.filter.AbstractChainableSecurityFilter.doFilter(Unknown Source) at org.eclipse.scout.http.servletfilter.internal.FilterChainImpl.doFilter(Unknown Source) at org.eclipse.scout.http.servletfilter.ServletFilterDelegate.delegateServiceMethod(Unknown Source) at org.eclipse.scout.http.servletfilter.HttpServletEx.service(Unknown Source) at org.eclipse.equinox.http.registry.internal.ServletManager$ServletWrapper.service(ServletManager.java:180) at org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61) at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:126) at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:60) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.eclipse.equinox.http.jetty.internal.HttpServerManager$InternalHttpServiceServlet.service(HttpServerManager.java:317) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:924) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) Powered by Jetty:// What am I doing wrong? Thank you!
The problem is solved and the fix will be included in SR1 on 9/23/2011. Description: When accessing the project's process page in a webbrowser, the GET request did not run in a Scout server job. Thus, services with session scope could not be resolved which caused the reported Nullpointer exception. The problem is located in org.eclipse.scout.rt.server.ServiceTunnelServlet. Please note, that the client-server communication of the application was not affected as it is based on POST and not on GET requests. Prior to SR1, you can solve the problem in 2 ways: 1. Use P2 nightly build updatesite and update Scout RT accordingly: http://download.eclipse.org/scout/nightly/update/. Please be in mind, that the nightly build might be unstable. 2. Extend the class ServiceTunnelServlet and overwrite the faulty method doGet with a temporary fix. In order to work, replace the existing ServiceTunnelServlet registration in plugin.xml of server plugin with the new servlet class. E.g. change <servlet alias="/process" class="com.blubber.server.ServiceTunnelServlet"> <init-param name="min-version" value="0.0.0"/> </servlet> to <servlet alias="/process" class="com.blubber.server.ServiceTunnelServletEx"> <init-param name="min-version" value="0.0.0"/> </servlet> . The file 'ServiceTunnelServletEx' can be found in the files that belong to this bug.
Created attachment 198753 [details] Tempoary fix for ServiceTunnelServlet Tempoary fix for ServiceTunnelServlet to run GET request in a server job.
Fixed ServiceTunnelServlet for milestone 3.7.1 (SR1)
shipped with scout 3.7.1
