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[udig-devel] Layers view error/hack
I get an error on starting up my application (which builds on uDig SDK rc9), here at the 'HACK' line: 

    if(selectedLayer != null && getSite()!=null &&
           getSite().getSelectionProvider()!=null ){
getSite().getSelectionProvider().setSelection(new StructuredSelection(selectedLayer)); 
    }else{
// HACK this makes the ContentModelItemProvider be added to the ContextModel getSite().getSelectionProvider().setSelection(new StructuredSelection()); 
    }
What's the purpose of this? Seems with the 'null' checks the failed line is going to always throw an error unless selectedLayer is the only null thing. 

Vince.

Full stack trace below:

java.lang.NullPointerException
at net.refractions.udig.project.ui.internal.LayersView.setCurrentMap(LayersView.java:243) at net.refractions.udig.project.ui.internal.LayersView.createPartControl(LayersView.java:567) at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:332) at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:197) at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:566) 
        at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:290)
        at org.eclipse.ui.internal.ViewPane.setVisible(ViewPane.java:525)
at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:140) at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:268) at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65) at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:394) at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1144) 
        at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:620)
        at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:532)
at org.eclipse.ui.internal.PartSashContainer.createControl(PartSashContainer.java:562) at org.eclipse.ui.internal.PerspectiveHelper.activate(PerspectiveHelper.java:244) at org.eclipse.ui.internal.Perspective.onActivate(Perspective.java:815) at org.eclipse.ui.internal.WorkbenchPage.setPerspective(WorkbenchPage.java:3284) at org.eclipse.ui.internal.WorkbenchPage.busySetPerspective(WorkbenchPage.java:957) at org.eclipse.ui.internal.WorkbenchPage.access$12(WorkbenchPage.java:941) at org.eclipse.ui.internal.WorkbenchPage$12.run(WorkbenchPage.java:3408) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67) at org.eclipse.ui.internal.WorkbenchPage.setPerspective(WorkbenchPage.java:3406) at org.eclipse.ui.internal.PerspectiveBarContributionItem.select(PerspectiveBarContributionItem.java:123) at org.eclipse.ui.internal.PerspectiveBarContributionItem$1.widgetSelected(PerspectiveBarContributionItem.java:92) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:90) 
        at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3348) 
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2968)
        at org.eclipse.jface.window.Window.runEventLoop(Window.java:820)
        at org.eclipse.jface.window.Window.open(Window.java:796)
at org.eclipse.pde.internal.runtime.logview.EventDetailsDialog.open(EventDetailsDialog.java:183) at org.eclipse.pde.internal.runtime.logview.EventDetailsDialogAction.run(EventDetailsDialogAction.java:91) at org.eclipse.pde.internal.runtime.logview.LogView$13.doubleClick(LogView.java:403) at org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:796) 
        at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
        at org.eclipse.core.runtime.Platform.run(Platform.java:843)
        at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44)
        at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:149)
at org.eclipse.jface.viewers.StructuredViewer.fireDoubleClick(StructuredViewer.java:794) at org.eclipse.jface.viewers.AbstractTreeViewer.handleDoubleSelect(AbstractTreeViewer.java:1227) at org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1158) at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:223) 
        at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:220)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:281) 
        at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3348) 
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2968)
        at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1914)
        at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1878)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:419) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at com.eurobios.waste.rcp.ui.WasteApplication.run(WasteApplication.java:26) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177) 
        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.core.launcher.Main.invokeFramework(Main.java:336)
        at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
        at org.eclipse.core.launcher.Main.run(Main.java:977)
        at org.eclipse.core.launcher.Main.main(Main.java:952)

Vince Darley
CEO, Eurobios UK Ltd
Tel: +44 207 921 0445
Mobile: +44 794 154 8527
www.eurobios.com

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