Bug 115832 [build path] Can't uncheck export of source folder
build I20051102-1600 In order to test compiling JFace against a reduced subset of core.runtime, I: - changed the build path of org.eclipse.jface to include its runtime-util source folder - removed the plug-in dependencies classpath container - added o.e.core.commands and SWT as explicit projects On the Libraries tab, the runtime-util source folder is exported, and I cannot uncheck it, even though the check box is enabled. With this setup, downstream plug-ins complain about references to IProgressMonitor etc due to access restrictions from JFace. I do not want these plug-ins to see the ones in runtime-util. They should compile against the org.eclipse.core.runtime plug-in as usual. Expected behaviour: - The ability to uncheck export of the source folder.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/BuildPathsBlock.java
locationURI= null;
				}
				desc.setLocationURI(locationURI);
				project.create(desc, monitor);
				monitor= null;
			}
			if (!project.isOpen()) {
				project.open(monitor);
				monitor= null;
			}
		} finally {
			if (monitor != null) {
				monitor.done();
			}
		}
	}
	public static void addJavaNature(IProject project, IProgressMonitor monitor) throws CoreException {
		if (monitor != null && monitor.isCanceled()) {
			throw new OperationCanceledException();
		}
		if (!project.hasNature(JavaCore.NATURE_ID)) {
			IProjectDescription description = project.getDescription();
			String[] prevNatures= description.getNatureIds();
			String[] newNatures= new String[prevNatures.length + 1];
			System.arraycopy(prevNatures, 0, newNatures, 0, prevNatures.length);
			newNatures[prevNatures.length]= JavaCore.NATURE_ID;
			description.setNatureIds(newNatures);
			project.setDescription(description, monitor);
		} else {
			monitor.worked(1);