[ptp-dev] Null pointer exception in RemoteConfigurationEnvironmentSuppli

[Dave Wootton <dwootton@xxxxxxxxxx>]

In testing the PTP 5.0 6/3 build I loaded
the source for my HPC Toolkit plugin and started an Eclipse runtime session
to test if that plugin still worked. That plugin has an option to load
an executable so that it can be instrumented for performance analysis.
Part of theprocessing for loading an executable is to attempt to open the
source files the executable as built from. When I do this, I am getting
a null pointer exception with the traceback below and the editor fails
to open. This worked with PTP 5.0 source I had extracted into my workspace
last week.

The code in my plugin where I attempt
to open an editor with the source code is

 IDE.openEditorOnFileStore(page,
((PTPRemoteFile) list[j]).getFileObject());

where getFileObject returns an IFileStore
object. I looked at that object in a debugger and it looks like it has
the name of a remote tools connection I am using and the components of
the file's source path.

I'm not sure if this is something my
plugin is doing wrong or if this is a bug in PTP code.

at org.eclipse.ptp.rdt.managedbuilder.xlc.ui.environment.RemoteConfigurationEnvironmentSupplier.getRemoteEnvironment(RemoteConfigurationEnvironmentSupplier.java:121)
        at
org.eclipse.ptp.rdt.managedbuilder.xlc.ui.environment.RemoteConfigurationEnvironmentSupplier.getVariable(RemoteConfigurationEnvironmentSupplier.java:57)
        at
org.eclipse.cdt.managedbuilder.internal.envvar.ExternalExtensionEnvironmentSupplier.getVariable(ExternalExtensionEnvironmentSupplier.java:66)
        at
org.eclipse.cdt.managedbuilder.internal.dataprovider.BuildEnvironmentContributor.getVariable(BuildEnvironmentContributor.java:53)
        at
org.eclipse.cdt.internal.core.envvar.BuildSystemEnvironmentSupplier.getVariable(BuildSystemEnvironmentSupplier.java:169)
        at
org.eclipse.cdt.internal.core.envvar.EnvironmentVariableManager.getVariable(EnvironmentVariableManager.java:157)
        at
org.eclipse.cdt.internal.core.envvar.EnvironmentVariableManager.getVariable(EnvironmentVariableManager.java:190)
        at
org.eclipse.cdt.managedbuilder.internal.envvar.EnvironmentVariableProvider.getVariable(EnvironmentVariableProvider.java:118)
        at
org.eclipse.cdt.managedbuilder.internal.envvar.EnvironmentVariableProvider.getBuildPaths(EnvironmentVariableProvider.java:238)
        at
org.eclipse.cdt.managedbuilder.internal.dataprovider.BuildEntryStorage.getEnvEntries(BuildEntryStorage.java:371)
        at
org.eclipse.cdt.managedbuilder.internal.dataprovider.BuildEntryStorage.putEntriesToLevel(BuildEntryStorage.java:187)
        at
org.eclipse.cdt.core.settings.model.util.AbstractEntryStorage.initCache(AbstractEntryStorage.java:71)
        at
org.eclipse.cdt.core.settings.model.util.AbstractEntryStorage.getEntries(AbstractEntryStorage.java:34)
        at
org.eclipse.cdt.managedbuilder.internal.dataprovider.BuildLanguageData.getEntries(BuildLanguageData.java:161)
        at
org.eclipse.cdt.core.settings.model.extension.impl.CDefaultLanguageData.getEntriesToCopy(CDefaultLanguageData.java:98)
        at
org.eclipse.cdt.core.settings.model.extension.impl.CDefaultLanguageData.createStore(CDefaultLanguageData.java:89)
        at
org.eclipse.cdt.core.settings.model.extension.impl.CDefaultLanguageData.copySettingsFrom(CDefaultLanguageData.java:82)
        at
org.eclipse.cdt.internal.core.settings.model.CLanguageSettingCache.copySettingsFrom(CLanguageSettingCache.java:48)
        at
org.eclipse.cdt.internal.core.settings.model.CLanguageSettingCache.<init>(CLanguageSettingCache.java:37)
        at
org.eclipse.cdt.internal.core.settings.model.CFolderDescriptionCache.copyLanguageData(CFolderDescriptionCache.java:72)
        at
org.eclipse.cdt.core.settings.model.extension.impl.CDefaultFolderData.copyDataFrom(CDefaultFolderData.java:56)
        at
org.eclipse.cdt.internal.core.settings.model.CFolderDescriptionCache.<init>(CFolderDescriptionCache.java:38)
        at
org.eclipse.cdt.internal.core.settings.model.CConfigurationDescriptionCache.copyFolderData(CConfigurationDescriptionCache.java:193)
        at
org.eclipse.cdt.core.settings.model.extension.impl.CDefaultConfigurationData.copySettingsFrom(CDefaultConfigurationData.java:113)
        at
org.eclipse.cdt.internal.core.settings.model.CConfigurationDescriptionCache.loadData(CConfigurationDescriptionCache.java:99)
        at
org.eclipse.cdt.internal.core.settings.model.CProjectDescription.loadDatas(CProjectDescription.java:196)
        at
org.eclipse.cdt.internal.core.settings.model.xml.XmlProjectDescriptionStorage.loadProjectDescription(XmlProjectDescriptionStorage.java:486)
        at
org.eclipse.cdt.internal.core.settings.model.xml.XmlProjectDescriptionStorage.getProjectDescription(XmlProjectDescriptionStorage.java:231)
        at
org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager.getProjectDescriptionInternal(CProjectDescriptionManager.java:416)
        at
org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager.getProjectDescription(CProjectDescriptionManager.java:398)
        at
org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager.getProjectDescription(CProjectDescriptionManager.java:393)
        at
org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager.getProjectDescription(CProjectDescriptionManager.java:386)
        at
org.eclipse.cdt.internal.core.model.CProject.computeSourceRoots(CProject.java:603)
        at
org.eclipse.cdt.internal.core.model.CProject.computeChildren(CProject.java:624)
        at
org.eclipse.cdt.internal.core.model.CProject.buildStructure(CProject.java:588)
        at
org.eclipse.cdt.internal.core.model.Openable.generateInfos(Openable.java:265)
        at
org.eclipse.cdt.internal.core.model.CElement.openWhenClosed(CElement.java:430)
        at
org.eclipse.cdt.internal.core.model.CElement.getElementInfo(CElement.java:309)
        at
org.eclipse.cdt.internal.core.model.CElement.getElementInfo(CElement.java:299)
        at
org.eclipse.cdt.internal.core.model.Parent.getChildren(Parent.java:55)
        at
org.eclipse.cdt.internal.core.model.CProject.getSourceRoots(CProject.java:480)
        at
org.eclipse.cdt.internal.core.model.CModelManager.create(CModelManager.java:327)
        at
org.eclipse.cdt.core.model.CoreModel.create(CoreModel.java:121)
        at
org.eclipse.cdt.internal.ui.editor.CDocumentProvider.createTranslationUnit(CDocumentProvider.java:795)
        at
org.eclipse.cdt.internal.ui.editor.CDocumentProvider.createFileInfo(CDocumentProvider.java:836)
        at
org.eclipse.ui.editors.text.TextFileDocumentProvider.connect(TextFileDocumentProvider.java:478)
        at
org.eclipse.cdt.internal.ui.editor.CDocumentProvider.connect(CDocumentProvider.java:779)
        at
org.eclipse.ui.texteditor.AbstractTextEditor.doSetInput(AbstractTextEditor.java:4213)
        at
org.eclipse.ui.texteditor.StatusTextEditor.doSetInput(StatusTextEditor.java:237)
        at
org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.doSetInput(AbstractDecoratedTextEditor.java:1451)
        at
org.eclipse.ui.editors.text.TextEditor.doSetInput(TextEditor.java:169)
        at
org.eclipse.cdt.internal.ui.editor.CEditor.internalDoSetInput(CEditor.java:1425)
        at
org.eclipse.cdt.internal.ui.editor.CEditor.doSetInput(CEditor.java:1390)
        at
org.eclipse.ptp.internal.rdt.ui.editor.RemoteCEditor.doSetInput(RemoteCEditor.java:166)
        at
org.eclipse.ui.texteditor.AbstractTextEditor$19.run(AbstractTextEditor.java:3200)
        at
org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
        at
org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
        at
org.eclipse.jface.window.ApplicationWindow$1.run(ApplicationWindow.java:759)
        at
org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
        at
org.eclipse.jface.window.ApplicationWindow.run(ApplicationWindow.java:756)
        at
org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2642)
        at
org.eclipse.ui.texteditor.AbstractTextEditor.internalInit(AbstractTextEditor.java:3218)
        at
org.eclipse.ui.texteditor.AbstractTextEditor.init(AbstractTextEditor.java:3245)
        at
org.eclipse.ui.internal.EditorManager.createSite(EditorManager.java:828)
        at
org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:647)
        at
org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465)
        at
org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
        at
org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:289)
        at
org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2945)
        at
org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2850)
        at
org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2842)
        at
org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2793)
        at
org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
        at
org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2789)
        at
org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2773)
        at
org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2756)
        at
org.eclipse.ui.ide.IDE.openEditorOnFileStore(IDE.java:1155)
        at
com.ibm.research.hpct.tools.view.HPMView.openRemoteSourceFiles(HPMView.java:116)
        at
com.ibm.research.hpct.tools.view.HPMView.selectionChanged(HPMView.java:174)
        at
org.eclipse.ui.internal.AbstractSelectionService.fireSelection(AbstractSelectionService.java:156)
        at
org.eclipse.ui.internal.AbstractSelectionService$1.selectionChanged(AbstractSelectionService.java:62)
        at
org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:164)
        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.Viewer.fireSelectionChanged(Viewer.java:162)
        at
org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2188)
        at
org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1211)
        at
org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1241)
        at
org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:239)
        at
org.eclipse.jface.util.OpenStrategy.access$4(OpenStrategy.java:233)
        at
org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:403)
        at
org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
        at
org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
        at
org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4163)
        at
org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3752)
        at
org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
        at
org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
        at
org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
        at
org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
        at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
        at
org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
        at
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
        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:344)
        at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
        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:622)
        at
org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
        at
org.eclipse.equinox.launcher.Main.run(Main.java:1410)
        at
org.eclipse.equinox.launcher.Main.main(Main.java:1386)
Dave