Re: [topbraid-users] TBC throws NPE on adding argument to function

[Scott Henninger]

Nicolae; As Holger stated, we are not able to reproduce this exception, and not for lack of trying.  One suggestion is to re-set the system files by deleting the TopBraid project and re-starting TBC-ME.  (BTW, if you have upgraded TBC-ME, be sure to follow the instructions "How do I upgrade to the latest version of Composer" at http://www.topquadrant.com/knowledge-assets/faq/tbc/. In addition, if you use the "Navigate to surrounding function" icon to go to the defining function for the script, see http://www.topquadrant.com/resources/technology/docs/SemanticWebService_in5steps_using_TopBraid_andSPARQLMotion.pdf, you can add arguments by choosing the context menu triangle next to spin:constraint to get the same template for adding an argument. Lastly, if either of those are not working, try setting the preferences to a longer log to see if we can get more information on the exception.  Go to Preferences > TopBraid Composer > Error handling and select "Create longer stack traces".  Be sure to reset that setting after capturing the exception, as it will have an impact on performance. -- Scott On 4/17/2014, 3:40 AM, Nicolae Marasoiu wrote: Hi, Steps: Open a sms.ttl. Scripts/Create new SM function/Add(argument) -> select elhfnc:orgId (used in other existing functions) -> NPE. the type is Property, the range is xsd:string putting explicitly value types doesn't help Thanks On Thursday, April 17, 2014 1:34:22 AM UTC+3, Holger Knublauch wrote: Hi Nicolae, I have tried to reproduce this but could not so far. Judging from the source code this scenario could only happen if the selected spl:predicate is null, but the dialog doesn't allow this to happen. I tried it also with TopBraid 4.4 on Mac. If you have any more details on the exact steps, then I would appreciate it. I will in any case wrap this place with another if statement to make it safer. The wizard is just a convenience feature, so if you can't make it work you can still "manually" create new functions and web services. Look at other examples on how this is done - essentially like with SPIN functions. Thanks Holger On 4/17/2014 0:51, Nicolae Marasoiu wrote: Hi, I try to create a new function with TBC 4.4.  Scenario: Open Scripts/ create function/web service. On adding an argument, I select an URI/IRI to an existing Property type resource with range xsd:string, already used in other functions.  Click Ok in add-arg popup. Result: First attempt, NPE. Second attempt, it worked. Thrid, NPE. Pls help, Thanks Stack: java.lang.NullPointerException                 at org.topbraid.core.labels.DisplayLabels.getLabel(DisplayLabels.java:156)                 at org.topbraid.core.labels.DisplayLabels.getLabel(DisplayLabels.java:139)                 at org.topbraidcomposer.spin.createfunction.ArgumentsTableViewer$MyLabelProvider.getColumnText(ArgumentsTableViewer.java:175)                 at org.eclipse.jface.viewers.TableColumnViewerLabelProvider.update(TableColumnViewerLabelProvider.java:70)                 at org.eclipse.jface.viewers.ViewerColumn.refresh(ViewerColumn.java:152)                 at org.eclipse.jface.viewers.AbstractTableViewer.doUpdateItem(AbstractTableViewer.java:400)                 at org.eclipse.jface.viewers.StructuredViewer$UpdateItemSafeRunnable.run(StructuredViewer.java:485)                 at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)                 at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)                 at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)                 at org.eclipse.jface.viewers.StructuredViewer.updateItem(StructuredViewer.java:2167)                 at org.eclipse.jface.viewers.AbstractTableViewer.createItem(AbstractTableViewer.java:278)                 at org.eclipse.jface.viewers.AbstractTableViewer.internalRefreshAll(AbstractTableViewer.java:758)                 at org.eclipse.jface.viewers.AbstractTableViewer.internalRefresh(AbstractTableViewer.java:650)                 at org.eclipse.jface.viewers.AbstractTableViewer.internalRefresh(AbstractTableViewer.java:637)                 at org.eclipse.jface.viewers.AbstractTableViewer$2.run(AbstractTableViewer.java:593)                 at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1443)                 at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1404)                 at org.eclipse.jface.viewers.AbstractTableViewer.inputChanged(AbstractTableViewer.java:591)                 at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:280)                 at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1690)                 at org.topbraidcomposer.spin.createfunction.ArgumentsTableViewer$2.okPressed(ArgumentsTableViewer.java:133)                 at org.eclipse.jface.dialogs.Dialog.buttonPressed(Dialog.java:476)                 at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:628)                 at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)                 at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)                 at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)                 at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4170)                 at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759)                 at org.eclipse.jface.window.Window.runEventLoop(Window.java:826)                 at org.eclipse.jface.window.Window.open(Window.java:802)                 at org.topbraidcomposer.spin.createfunction.ArgumentsTableViewer.addArgument(ArgumentsTableViewer.java:144)                 at org.topbraidcomposer.spin.createfunction.CreateFunctionDialog$1.widgetSelected(CreateFunctionDialog.java:129)                 at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)                 at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)                 at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)                 at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4170)                 at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759)                 at org.eclipse.jface.window.Window.runEventLoop(Window.java:826)                 at org.eclipse.jface.window.Window.open(Window.java:802)                 at org.topbraidcomposer.sparqlmotion.actions.CreateFunctionAction.doRun(CreateFunctionAction.java:40)                 at org.topbraidcomposer.sparqlmotion.actions.AbstractCreateSPARQLMotionAction.run(AbstractCreateSPARQLMotionAction.java:41)                 at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251)                 at org.eclipse.ui.internal.WWinPluginAction.runWithEvent(WWinPluginAction.java:229)                 at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)                 at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)                 at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)                 at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)                 at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)                 at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4170)                 at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759)                 at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)                 at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)                 at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)                 at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)                 at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610)                 at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)                 at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)                 at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)                 at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)                 at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)                 at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)                 at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)                 at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)                 at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)                 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)                 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)                 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)                 at java.lang.reflect.Method.invoke(Unknown Source)                 at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)                 at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)                 at org.eclipse.equinox.launcher.Main.run(Main.java:1450)                 at org.eclipse.equinox.launcher.Main.main(Main.java:1426) -- -- You received this message because you are subscribed to the Google Group "TopBraid Suite Users", the topics of which include Enterprise Vocabulary Network (EVN), TopBraid Composer, TopBraid Live, TopBraid Insight, SPARQLMotion, SPARQL Web Pages and SPIN. To post to this group, send email to topbrai...@googlegroups.com To unsubscribe from this group, send email to topbraid-user...@googlegroups.com For more options, visit this group at http://groups.google.com/group/topbraid-users?hl=en --- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to topbraid-user...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- -- You received this message because you are subscribed to the Google Group "TopBraid Suite Users", the topics of which include Enterprise Vocabulary Network (EVN), TopBraid Composer, TopBraid Live, TopBraid Insight, SPARQLMotion, SPARQL Web Pages and SPIN. To post to this group, send email to topbraid-users@googlegroups.com To unsubscribe from this group, send email to topbraid-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/topbraid-users?hl=en --- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to topbraid-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- -- You received this message because you are subscribed to the Google Group "TopBraid Suite Users", the topics of which include Enterprise Vocabulary Network (EVN), TopBraid Composer, TopBraid Live, TopBraid Insight, SPARQLMotion, SPARQL Web Pages and SPIN. To post to this group, send email to topbraid-users@googlegroups.com To unsubscribe from this group, send email to topbraid-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/topbraid-users?hl=en --- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to topbraid-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.