Bug 82231 [build path] Hard to find type restriction compiler problem preferences
I20050104-1600 There compiler preference page contains a Warning/Error node with many sub-entries . I tried to find where I could change the 'warning' for the access of internal types to 'error'. No luck until I realized that the Build node also contains Warning/Error settings.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/ProjectsWorkbookPage.java
fProjectsList.postSetSelection(new StructuredSelection(entries));
		}
	}
	
	private void removeEntry() {
		List selElements= fProjectsList.getSelectedElements();
		for (int i= selElements.size() - 1; i >= 0 ; i--) {
			Object elem= selElements.get(i);
			if (elem instanceof CPListElementAttribute) {
				CPListElementAttribute attrib= (CPListElementAttribute) elem;
				String key= attrib.getKey();
				Object value= null;
				if (key.equals(CPListElement.ACCESSRULES)) {
					value= new IAccessRule[0];
				}
				attrib.getParent().setAttribute(key, value);
				selElements.remove(i);
			}
		}
		if (selElements.isEmpty()) {
			fProjectsList.refresh();
			fClassPathList.dialogFieldChanged(); 
		} else {
			fProjectsList.removeElements(selElements);
		}
	}
	
	private boolean canRemove(List selElements) {
		if (selElements.size() == 0) {
			return false;