Bug 96952 [build path] project settings: library tab enablement and focus
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/LibrariesWorkbookPage.java
return false;
			}
		}		
		return true;
	}	
	/**
	 * Method editEntry.
	 */
	private void editEntry() {
		List selElements= fLibrariesList.getSelectedElements();
		if (selElements.size() != 1) {
			return;
		}
		Object elem= selElements.get(0);
		if (fLibrariesList.getIndexOfElement(elem) != -1) {
			editElementEntry((CPListElement) elem);
		} else if (elem instanceof CPListElementAttribute) {
			editAttributeEntry((CPListElementAttribute) elem);
		}
	}
	
	private void editAttributeEntry(CPListElementAttribute elem) {
		String key= elem.getKey();
		CPListElement selElement= elem.getParent();
		
		if (key.equals(CPListElement.SOURCEATTACHMENT)) {
			IClasspathEntry result= BuildPathDialogAccess.configureSourceAttachment(getShell(), selElement.getClasspathEntry());
			if (result != null) {
				selElement.setAttribute(CPListElement.SOURCEATTACHMENT, result.getSourceAttachmentPath());
				String[] changedAttributes= { CPListElement.SOURCEATTACHMENT };