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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) 2005, 2018 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
 *******************************************************************************/

package org.eclipse.equinox.internal.app;

import org.eclipse.equinox.app.IApplication;
import org.eclipse.equinox.app.IApplicationContext;

/*
 * Special case class only used to throw exceptions when an application
 * cannot be found.
 */
public class ErrorApplication implements IApplication {
	static final String ERROR_EXCEPTION = "error.exception"; //$NON-NLS-1$

	@Override
	public Object start(IApplicationContext context) throws Exception {
		Exception error = (Exception) context.getArguments().get(ERROR_EXCEPTION);
		if (error != null)
			throw error;
		throw new IllegalStateException();
	}

	@Override
	public void stop() {
		// do nothing
	}
}