Bug 68586 [implementation] Reconciling should be more robust
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitDocumentProvider.java
* @see org.eclipse.jdt.internal.ui.javaeditor.ICompilationUnitDocumentProvider#setSavePolicy(org.eclipse.jdt.internal.ui.javaeditor.ISavePolicy)
	 */
	public void setSavePolicy(ISavePolicy savePolicy) {
		fSavePolicy= savePolicy;
	}
	
	/*
	 * @see org.eclipse.jdt.internal.ui.javaeditor.ICompilationUnitDocumentProvider#addGlobalAnnotationModelListener(org.eclipse.jface.text.source.IAnnotationModelListener)
	 */
	public void addGlobalAnnotationModelListener(IAnnotationModelListener listener) {
		fGlobalAnnotationModelListener.addListener(listener);
	}
	/*
	 * @see org.eclipse.jdt.internal.ui.javaeditor.ICompilationUnitDocumentProvider#removeGlobalAnnotationModelListener(org.eclipse.jface.text.source.IAnnotationModelListener)
	 */
	public void removeGlobalAnnotationModelListener(IAnnotationModelListener listener) {
		fGlobalAnnotationModelListener.removeListener(listener);
	}
	/*
	 * @see org.eclipse.jdt.internal.ui.javaeditor.ICompilationUnitDocumentProvider#getWorkingCopy(java.lang.Object)
	 */
	public ICompilationUnit getWorkingCopy(Object element) {
		FileInfo fileInfo= getFileInfo(element);		
		if (fileInfo instanceof CompilationUnitInfo) {
			CompilationUnitInfo info= (CompilationUnitInfo) fileInfo;
			return info.fCopy;
		}
		return null;
	}