maven-resolver-transport-wagon/src/main/java/org/eclipse/aether/transport/wagon/WagonCancelledException.java

package org.eclipse.aether.transport.wagon;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

import org.eclipse.aether.transfer.TransferCancelledException;

/**
 * Unchecked exception to allow the checked {@link TransferCancelledException} to bubble up from a wagon.
 */
class WagonCancelledException
    extends RuntimeException
{

    WagonCancelledException( TransferCancelledException cause )
    {
        super( cause );
    }

    public static Exception unwrap( Exception e )
    {
        if ( e instanceof WagonCancelledException )
        {
            e = (Exception) e.getCause();
        }
        return e;
    }

}