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In a runtime Eclipse I get the following NPE if I select the Preference page for Link Handlers. This error does not occur in my normal IDE. java.lang.NullPointerException at org.eclipse.urischeme.internal.registration.RegistrationLinux.<init>(RegistrationLinux.java:42) at org.eclipse.urischeme.IOperatingSystemRegistration.getInstance(IOperatingSystemRegistration.java:39) at org.eclipse.ui.internal.ide.application.dialogs.UriSchemeHandlerPreferencePage.init(UriSchemeHandlerPreferencePage.java:107) at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode.createPage(WorkbenchPreferenceNode.java:62) at org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDialog.java:1280) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(FilteredPreferenceDialog.java:338) at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1167) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:630) at org.eclipse.jface.preference.PreferenceDialog$5.lambda$0(PreferenceDialog.java:661) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:72) at org.eclipse.jface.preference.PreferenceDialog$5.selectionChanged(PreferenceDialog.java:658) at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:818) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.ui.internal.JFaceUtil.lambda$0(JFaceUtil.java:47) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:174) at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:815) at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1185) at org.eclipse.jface.viewers.StructuredViewer.lambda$0(StructuredViewer.java:1208) at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:84) at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:263) at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:258) at org.eclipse.jface.util.OpenStrategy$1.lambda$1(OpenStrategy.java:428) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4906) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4428) at org.eclipse.jface.window.Window.runEventLoop(Window.java:823) at org.eclipse.jface.window.Window.open(Window.java:799) at org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:66) at org.eclipse.jface.action.Action.runWithEvent(Action.java:474) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:579) at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:413) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5672) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1423) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4931) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4425) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1160) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1049) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:660) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:559) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:150) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:567) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438)
Created attachment 280441 [details] Screenshot
Platform.getProduct().getName() throws that NPE, since you are not running a product. I don't use Linux, therefore I cannot say whether the .desktop file really needs that name. If so, the default constructor needs to be changed to handle the null product and to use a fixed value like "Eclipse" in that case.
(In reply to Michael Keppler from comment #2) > Platform.getProduct().getName() throws that NPE, since you are not running a > product. I don't use Linux, therefore I cannot say whether the .desktop file > really needs that name. If so, the default constructor needs to be changed > to handle the null product and to use a fixed value like "Eclipse" in that > case. Michael, thanks for the analysis. Would you like to provide a gerrit?
