modules/core/src/main/java/org/apache/ignite/internal/util/GridMutex.java

/*
 * 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.
 */

package org.apache.ignite.internal.util;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import org.apache.ignite.internal.util.typedef.internal.S;

/**
 * Serializable mutex.
 */
@SuppressWarnings( {"CloneDoesntDeclareCloneNotSupportedException"})
public class GridMutex implements Externalizable, Cloneable {
    /** */
    private static final long serialVersionUID = 0L;

    /** {@inheritDoc} */
    @Override public Object clone() {
        try {
            return super.clone();
        }
        catch (CloneNotSupportedException ignore) {
            throw new InternalError();
        }
    }

    /** {@inheritDoc} */
    @Override public void writeExternal(ObjectOutput out) throws IOException {
        // No-op.
    }

    /** {@inheritDoc} */
    @Override public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        // No-op.
    }

    /** {@inheritDoc} */
    @Override public String toString() {
        return S.toString(GridMutex.class, this);
    }
}