Anyone know this error: foo is not a URI node ???

[Jack Hodges]

I have been getting a bunch of these, related to SWP views. I am not doing anything special. My SWP SPARQL queries, and the views, test out fine in test cases and live, when they load. I also get a lot of timeouts on the views. Very weird, and frustrating.

Also, when these errors occur, it seems as though topbraid is caching a lot of memory because the memory footprint grows to the max I have allocated and then it churns away on something, using a lot of cycles, until I give up and close the application. Before all of this happens it is 'fine'.

Jack

java.lang.UnsupportedOperationException: 2b5e2a05:14759872fc6:3920 is not a URI node
    at com.hp.hpl.jena.graph.Node.getURI(Node.java:240)
    at org.topbraid.spin.swp.functions.internal.EncodeURLFunction.run(EncodeURLFunction.java:36)
    at org.topbraid.spin.swp.engine.control.internal.CreateLinkControlElement.addArg(CreateLinkControlElement.java:65)
    at org.topbraid.spin.swp.engine.control.internal.CreateLinkControlElement.addArgs(CreateLinkControlElement.java:56)
    at org.topbraid.spin.swp.engine.control.internal.CreateLinkControlElement.run(CreateLinkControlElement.java:174)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:530)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:546)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodesFromPrototype(SWPEngine.java:601)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:525)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.control.internal.ElseControlElement.run(ElseControlElement.java:26)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:530)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:546)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:546)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.control.internal.IfControlElement.run(IfControlElement.java:25)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:530)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.control.internal.ForEachControlElement.run(ForEachControlElement.java:77)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:530)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:546)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:546)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:546)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:546)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodesFromPrototype(SWPEngine.java:601)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:525)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.control.internal.GroupControlElement.run(GroupControlElement.java:20)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:530)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodesFromPrototype(SWPEngine.java:601)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:525)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.control.internal.ForEachControlElement.run(ForEachControlElement.java:77)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:530)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodesFromPrototype(SWPEngine.java:601)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:525)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:546)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodesFromPrototype(SWPEngine.java:601)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:525)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.addChildNodes(SWPEngine.java:289)
    at org.topbraid.spin.swp.engine.control.internal.GroupControlElement.run(GroupControlElement.java:20)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:530)
    at org.topbraid.spin.swp.engine.SWPEngine.createNodes(SWPEngine.java:489)
    at org.topbraid.spin.swp.engine.SWPEngine.run(SWPEngine.java:1093)
    at org.topbraid.spin.swp.engine.XMLEngine.run(XMLEngine.java:97)
    at org.topbraid.spin.swp.servlet.SWPServletUtil.runUncached(SWPServletUtil.java:605)
    at org.topbraid.spin.swp.servlet.SWPServletUtil.run(SWPServletUtil.java:425)
    at org.topbraidlive.swp.servlet.SWPServlet.run(SWPServlet.java:162)
    at org.topbraidlive.swp.servlet.SWPServlet.run(SWPServlet.java:140)
    at org.topbraidlive.swp.servlet.SWPServlet.run(SWPServlet.java:123)
    at org.topbraidlive.swp.servlet.SWPServlet.doGet(SWPServlet.java:62)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at org.topbraid.eclipsex.servlet.TBHttpServlet.service(TBHttpServlet.java:115)
    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:401)
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
    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$RequestHandler.headerComplete(HttpConnection.java:928)
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:586)

[Holger Knublauch]

Looks like your code is calling ui:encodeURL for a blank node. This is not possible, so you'd need to surround that code with a ui:if or a SPARQL IF. Maybe you have code that iterates over all resources in the graph, including blank nodes of SPIN, SWP or OWL definitions.

Holger

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[Jack Hodges]

Thanks. I'll look for that. I am tyring to render class and instance views from these imported repositories and there may be blank nodes.