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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) OSGi Alliance (2000, 2013). All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.osgi.framework;

/**
 * A Framework exception used to indicate that a filter string has an invalid
 * syntax.
 * 
 * 
 * An {@code InvalidSyntaxException} object indicates that a filter string
 * parameter has an invalid syntax and cannot be parsed. See {@link Filter} for
 * a description of the filter string syntax.
 * 
 * 

 * This exception conforms to the general purpose exception chaining mechanism.
 * 
 * @author $Id: 59696296eff1574fa844e3a0a975ba6c83ec59af $
 */

public class InvalidSyntaxException extends Exception {
	static final long		serialVersionUID	= -4295194420816491875L;
	/**
	 * The invalid filter string.
	 */
	private final String	filter;

	/**
	 * Creates an exception of type {@code InvalidSyntaxException}.
	 * 
	 * 

	 * This method creates an {@code InvalidSyntaxException} object with the
	 * specified message and the filter string which generated the exception.
	 * 
	 * @param msg The message.
	 * @param filter The invalid filter string.
	 */
	public InvalidSyntaxException(String msg, String filter) {
		super(message(msg, filter));
		this.filter = filter;
	}

	/**
	 * Creates an exception of type {@code InvalidSyntaxException}.
	 * 
	 * 
	 * This method creates an {@code InvalidSyntaxException} object with the
	 * specified message and the filter string which generated the exception.
	 * 
	 * @param msg The message.
	 * @param filter The invalid filter string.
	 * @param cause The cause of this exception.
	 * @since 1.3
	 */
	public InvalidSyntaxException(String msg, String filter, Throwable cause) {
		super(message(msg, filter), cause);
		this.filter = filter;
	}

	/**
	 * Return message string for super constructor.
	 */
	private static String message(String msg, String filter) {
		if ((msg == null) || (filter == null) || msg.indexOf(filter) >= 0) {
			return msg;
		}
		return msg + ": " + filter;
	}

	/**
	 * Returns the filter string that generated the
	 * {@code InvalidSyntaxException} object.
	 * 
	 * @return The invalid filter string.
	 * @see BundleContext#getServiceReferences(Class, String)
	 * @see BundleContext#getServiceReferences(String, String)
	 * @see BundleContext#addServiceListener(ServiceListener,String)
	 */
	public String getFilter() {
		return filter;
	}

	/**
	 * Returns the cause of this exception or {@code null} if no cause was set.
	 * 
	 * @return The cause of this exception or {@code null} if no cause was set.
	 * @since 1.3
	 */
	@Override
	public Throwable getCause() {
		return super.getCause();
	}

	/**
	 * Initializes the cause of this exception to the specified value.
	 * 
	 * @param cause The cause of this exception.
	 * @return This exception.
	 * @throws IllegalArgumentException If the specified cause is this
	 *         exception.
	 * @throws IllegalStateException If the cause of this exception has already
	 *         been set.
	 * @since 1.3
	 */
	@Override
	public Throwable initCause(Throwable cause) {
		return super.initCause(cause);
	}
}