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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2018 Red Hat, Inc., 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.wildfly.common.lock;

import java.util.concurrent.locks.Lock;

/**
 * A thread-owned lock which exposes additional informational methods.
 */
public interface ExtendedLock extends Lock {

    /**
     * Determine if this lock is held.
     *
     * @return {@code true} if this lock is held, {@code false} otherwise
     */
    boolean isLocked();

    /**
     * Determine if this lock is held by the current thread.
     *
     * @return {@code true} if this lock is held by the current thread, {@code false} otherwise
     */
    boolean isHeldByCurrentThread();

    /**
     * Query if this lock instance tends to be "fair".
     *
     * @return {@code true} if the lock instance tends towards fairness, {@code false} otherwise
     */
    boolean isFair();
}




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