Bug 94367 cannot clear compiler compliance setting at the project level
i200505092010 Cannot disable the Java compiler project-specific preferences for some projects. Steps to reproduce: 1 - check out from CVS a Java project that has project-specific Java compiler settings enabled (example: org.eclipse.core.runtime). 2 - open the properties dialog for the project, select the Java compiler node, disable project-specific Java compiler preferences. 3 - Commit the changes by pressing "Ok" and reopen the properties dialog. It looks like the settings were not saved (project-specific settings are still enabled).
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/OptionsConfigurationBlock.java
}
			return fValues.length -1; 
		}
	}
	
	private static final String SETTINGS_EXPANDED= "expanded"; 
	protected final ArrayList fCheckBoxes;
	protected final ArrayList fComboBoxes;
	protected final ArrayList fTextBoxes;
	protected final HashMap fLabels;
	protected final ArrayList fExpandedComposites;
	
	private SelectionListener fSelectionListener;
	private ModifyListener fTextModifyListener;
	protected IStatusChangeListener fContext;
	protected final IProject fProject; 
	protected final Key[] fAllKeys;
	
	private IScopeContext[] fLookupOrder;
	
	private Shell fShell;
	private final IWorkingCopyManager fManager;
	private IWorkbenchPreferenceContainer fContainer;
	public OptionsConfigurationBlock(IStatusChangeListener context, IProject project, Key[] allKeys, IWorkbenchPreferenceContainer container) {
		fContext= context;
		fProject= project;
		fAllKeys= allKeys;
		fContainer= container;
		if (container == null) {
			fManager= new WorkingCopyManager();