Bug 90257 [Preferences] Want to create an instanceof of a WorkingCopyManager
20050405 I'm currently referencing the internal class org.eclipse.ui.internal.preferences.WorkingCopyManager I have a base class that manages all the current settings and I changes that class to use the working copy manager. For the following reasons I also have to function when I don't get a working copy manager. To avoid complicated code it would be nice if in these case I could just use an internal instance of the working copy manager. - In the preference page, when testing if my container is really of kind IWorkbenchPreferenceContainer (so I can access the working copy manager) I have to also handle the case that the test returns false - We have some pages that are contributed by extension point that don't give me access to the container due to API limitations.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/OptionsConfigurationBlock.java
private int fRebuildCount; 
	
	public OptionsConfigurationBlock(IStatusChangeListener context, IProject project, Key[] allKeys, IWorkbenchPreferenceContainer container) {
		fContext= context;
		fProject= project;
		fAllKeys= allKeys;
		fContainer= container;
		if (container == null) {
			fManager= new WorkingCopyManager();
		} else {
			fManager= container.getWorkingCopyManager();
		}
		
		if (fProject != null) {
			fLookupOrder= new IScopeContext[] {
				new ProjectScope(fProject),
				new InstanceScope(),
				new DefaultScope()
			};
		} else {
			fLookupOrder= new IScopeContext[] {
				new InstanceScope(),
				new DefaultScope()
			};
		}
		
		testIfOptionsComplete(allKeys);
		if (fProject == null || hasProjectSpecificOptions(fProject)) {
			fDisabledProjectSettings= null;