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Bug 355488

Summary:	Cannot delete variables from C/C++ build environment
Product:	[Tools] CDT	Reporter:	Martin Runge <martin.runge>
Component:	cdt-build	Assignee:	Andrew Gvozdev <angvoz.dev>
Status:	RESOLVED FIXED	QA Contact:	Andrew Gvozdev <angvoz.dev>
Severity:	normal
Priority:	P3	CC:	angvoz.dev, cdtdoug, martin.runge, schneider, yevshif
Version:	8.0
Target Milestone:	8.2
Hardware:	PC
OS:	Linux
Whiteboard:

Description Martin Runge

2011-08-23 06:56:26 EDT

Build Identifier: 20110615-0604

With CDT8 (Indigo) I can not remove environment variables from Window->Preferences->C/C++->Build->Environment any more. I can set them and change them, but I cannot delete them. 

Reproducible: Always

Steps to Reproduce:
1. Add an new environment variable to "Window->Preferences->C/C++->Build->Environment"
2. Restart Eclipse => variable is still there, as expected.
3. Delete that Variable from "Window->Preferences->C/C++->Build->Environment"
4. Restart Eclipse
5. Variable is still present. 

You have to delete it manually from
.metadata/.plugins/org.eclipse.core.runtime/.settings/org.eclipse.cdt.core.prefs
to get rid of it.

Comment 1 Andrew Gvozdev

2011-08-23 09:21:41 EDT

I also managed induce an exception acting randomly in UI on variable like that, in particular trying to edit and "Apply":
java.lang.NullPointerException
	at org.eclipse.cdt.ui.newui.EnvironmentTab.handleEnvDelButtonSelected(EnvironmentTab.java:449)
	at org.eclipse.cdt.ui.newui.EnvironmentTab.buttonPressed(EnvironmentTab.java:282)
	at org.eclipse.cdt.ui.newui.AbstractCPropertyTab.buttonPressed(AbstractCPropertyTab.java:269)
	at org.eclipse.cdt.ui.newui.AbstractCPropertyTab.access$0(AbstractCPropertyTab.java:266)
	at org.eclipse.cdt.ui.newui.AbstractCPropertyTab$1.widgetSelected(AbstractCPropertyTab.java:216)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)
	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:4165)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
	at org.eclipse.jface.window.Window.open(Window.java:801)
	at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:215)
	at org.eclipse.ui.internal.handlers.ShowPreferencePageHandler.execute(ShowPreferencePageHandler.java:54)
	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
	at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
	at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241)
	at org.eclipse.ui.internal.actions.CommandAction.runWithEvent(CommandAction.java:157)
	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:1053)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
	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)

Comment 2 Christian Schneider

2013-02-19 11:28:52 EST

i have the very same issue.

Running Juno SR1 with cdt 8.1.1 on SLES 64bit. Appareantly the Issue also arises when adding a Diff Viewer to SVN which also does not get persistet.

Comment 3 Andrew Gvozdev

2013-02-24 15:37:44 EST

Fixed on master (CDT 8.2).

Comment 4 Andrew Gvozdev

2013-02-24 17:56:55 EST

*** Bug 319738 has been marked as a duplicate of this bug. ***

Comment 5 CDT Genie

2013-02-27 12:16:30 EST

*** cdt git genie on behalf of Andrew Gvozdev ***

    bug 355488: Cannot delete variables from C/C++ build environment

[*] http://git.eclipse.org/c/cdt/org.eclipse.cdt.git/commit/?id=6e5ac901f4c2d0af7882887dcf0ddff3cdcd6824