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Trove of primitive collections with Apache 2.0 license, built for Java Java 8

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/*
 * Copyright 2014 the original author or authors.
 *
 * 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 net.openhft.collect.impl;

import javax.annotation.Nullable;


/**
 * Placeholder of java.util.Objects in JDK6. Should not be used with JDK7 and later.
 * This class not in net.openhft.collect.impl package, because it is used in the api
 */
public final class NullableObjects {
    private NullableObjects() {}

    public static boolean equals(@Nullable Object a, @Nullable Object b) {
        return a == b || a != null && a.equals(b);
    }

    public static int hashCode(@Nullable Object o) {
        return o != null ? o.hashCode() : 0;
    }
}