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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

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/*******************************************************************************
 * Copyright (c) 2004, 2015 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Jan-Ove Weichel ([email protected]) - bug 474359
 *******************************************************************************/
package org.eclipse.core.internal.preferences;

import java.util.*;

/**
 * A {@link Properties} class whose entries are sorted by key; can only be used in limited scenarios
 * like storing properties to a file.
 * 
 * Implementation note: The implementations of the {@link #keys()} and {@link #entrySet()} methods
 * violate the contracts of {@link Properties#keySet()} and {@link Properties#entrySet()}, because the returned sets
 * are not backed by this map.
 * Overriding both methods is necessary to support Oracle and IBM VMS, see
 * bug 325000.
 * 
 */
public class SortedProperties extends Properties {
	// Warning: This class is referenced by our friend org.eclipse.core.internal.resources.ProjectPreferences

	private static final long serialVersionUID = 1L;

	@Override
	public synchronized Enumeration