/*******************************************************************************
* Copyright (c) 2008, 2010 VMware Inc.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* VMware Inc. - initial contribution
*******************************************************************************/
package org.eclipse.virgo.kernel.userregion.internal.importexpansion;
import org.eclipse.virgo.kernel.osgi.framework.ImportMergeException;
/**
* {@link EmptyTrackedPackageImports} is an immutable, empty collection of package imports.
* <p />
*
* <strong>Concurrent Semantics</strong><br />
*
* This class is immutable and therefore thread safe.
*
*/
final class EmptyTrackedPackageImports extends CollectingTrackedPackageImports {
/**
* {@inheritDoc}
*/
@Override
public final void merge(TrackedPackageImports importsToMerge) throws ImportMergeException {
throw new UnsupportedOperationException();
}
}