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/*
 * JBoss, Home of Professional Open Source.
 *
 * Copyright 2012 Red Hat, Inc. and/or its affiliates, and individual
 * contributors as indicated by the @author tags.
 *
 * Licensed 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.xnio.channels;

/**
 * An exception which is thrown when more than one thread tries to access a stream channel at once.  While it is
 * permissible for different threads to read and write stream channels, only one thread may read at a time, and only
 * one thread may write at a time.
 *
 * @author David M. Lloyd
 */
public class ConcurrentStreamChannelAccessException extends IllegalStateException {

    /**
     * Constructs a {@code ConcurrentStreamChannelAccessException} with no detail message. The cause is not initialized,
     * and may subsequently be initialized by a call to {@link #initCause(Throwable) initCause}.
     */
    public ConcurrentStreamChannelAccessException() {
    }

    /**
     * Constructs a {@code ConcurrentStreamChannelAccessException} with the specified detail message. The cause is not
     * initialized, and may subsequently be initialized by a call to {@link #initCause(Throwable) initCause}.
     *
     * @param msg the detail message
     */
    public ConcurrentStreamChannelAccessException(final String msg) {
        super(msg);
    }

    /**
     * Constructs a {@code ConcurrentStreamChannelAccessException} with the specified cause. The detail message is set
     * to:
     * (cause == null ? null : cause.toString())
     * (which typically contains the class and detail message of {@code cause}).
     *
     * @param cause the cause (which is saved for later retrieval by the {@link #getCause()} method)
     */
    public ConcurrentStreamChannelAccessException(final Throwable cause) {
        super(cause);
    }

    /**
     * Constructs a {@code ConcurrentStreamChannelAccessException} with the specified detail message and cause.
     *
     * @param msg the detail message
     * @param cause the cause (which is saved for later retrieval by the {@link #getCause()} method)
     */
    public ConcurrentStreamChannelAccessException(final String msg, final Throwable cause) {
        super(msg, cause);
    }
}