/**
 *
 * Copyright 2015 Florian Schmaus
 *
 * 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.jivesoftware.smack.util;

public class Objects {

    public static <T> T requireNonNull(T obj, String message) {
        if (obj == null) {
            throw new NullPointerException(message);
        }
        return obj;
    }

    public static <T> T requireNonNull(T obj) {
        return requireNonNull(obj, null);
    }
}

/**
 *
 * Copyright 2015-2018 Florian Schmaus
 *
 * 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.jivesoftware.smack.util;

public class Objects {

    public static <T> T requireNonNull(T obj, String message) {
        if (obj == null) {
            throw new NullPointerException(message);
        }
        return obj;
    }

    public static <T> T requireNonNull(T obj) {
        return requireNonNull(obj, null);
    }

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

Add Objects.equals(Object, Object)