Bug 69424 TVT3.0: Multiple Mnemonics in Tasks -> Filters
From the main Workbench view, click the Task menu (drop down arrow) and select Filters. There are duplicated mnemonics for (D). See the attached screenshot.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MnemonicAssigner.java
/*******************************************************************************
 * Copyright (c) 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
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ui.views.markers.internal;
import java.util.HashSet;
import java.util.Set;
/**
 * Can be used to automatically assign non-conflicting mnemonics to SWT widgets.
 * Note: the current implementation is pretty bare-bones, and is intended to fix
 * a couple dialogs where the widgets are generated programmatically. If this were
 * to go into more general use, it would have to take into account preferred hotkeys
 * for the locale and have preferences for words coming after whitespace, etc. 
 * 
 * @since 3.1
 */
public class MnemonicAssigner {