Bug 76283 [performance] Problems requested twice when opening a Java editor
I20041013 When opening a Java editor, problems are requested once during ICompilationUnit#becomeWorkingCopy and once during ICompilationUnit#reconcile. The IProblemRequestor should be disabled during #becomeWorkingCopy so as to avoid to compute problems (which involves the full resolution of the working copy).
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/java/IProblemRequestorExtension.java
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 * Copyright (c) 2000, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
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 * Contributors:
 *     IBM Corporation - initial API and implementation
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package org.eclipse.jdt.internal.ui.text.java;
import org.eclipse.core.runtime.IProgressMonitor;
/**
 * Extension to <code>IProblemRequestor</code>.
 */
public interface IProblemRequestorExtension {
	
	/**