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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) 2016 IBM Corporation.
 *
 * 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.aspectj.org.eclipse.jdt.internal.core;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.aspectj.org.eclipse.jdt.core.ClasspathContainerInitializer;
import org.aspectj.org.eclipse.jdt.core.IClasspathContainer;
import org.aspectj.org.eclipse.jdt.core.IJavaProject;
import org.aspectj.org.eclipse.jdt.core.JavaCore;

public class ModulePathContainerInitializer extends ClasspathContainerInitializer {

	@Override
	public void initialize(IPath containerPath, IJavaProject project) throws CoreException {
		//
		if (isModulePathContainer(containerPath)) {
			if (project instanceof JavaProject) {
				// TODO: should project compliance level be checked here?
				ModulePathContainer container = new ModulePathContainer(project);
				JavaCore.setClasspathContainer(containerPath, new IJavaProject[] { project },
						new IClasspathContainer[] { container }, null);
			}
		} else if (JavaModelManager.CP_RESOLVE_VERBOSE || JavaModelManager.CP_RESOLVE_VERBOSE_FAILURE) {
			verbose_not_a_module_project(project, containerPath);
		}
	}
	private boolean isModulePathContainer(IPath path) {
		return path != null && JavaCore.MODULE_PATH_CONTAINER_ID.equals(path.segment(0));
	}
	private void verbose_not_a_module_project(IJavaProject project, IPath containerPath) {
		JavaModelManager.trace(
			"Module path INIT - FAILED (not a module project)\n" + //$NON-NLS-1$
			"	project: " + project.getElementName() + '\n' + //$NON-NLS-1$
			"	container path: " + containerPath); //$NON-NLS-1$
	}
}