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/*
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 *
 * Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved.
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 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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 * GPL Classpath Exception:
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 *
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package org.glassfish.hk2.utilities.general;

/**
 * This class contains utilities useful for any code
 * 
 * @author jwells
 *
 */
public class GeneralUtilities {
    /**
     * Returns true if a is equals to b, or both
     * and and b are null.  Is safe even if
     * a or b is null.  If a or b is null but
     * the other is not null, this returns false
     * 
     * @param a A possibly null object to compare
     * @param b A possibly null object to compare
     * @return true if equal, false if not
     */
    public static boolean safeEquals(Object a, Object b) {
        if (a == b) return true;
        if (a == null) return false;
        if (b == null) return false;
        
        return a.equals(b);
    }

}




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