package eu.darken.bluemusic.common;


public class Check {
    /**
     * Ensures that an object reference passed as a parameter to the calling
     * method is not null.
     *
     * @param reference an object reference
     * @return the non-null reference that was validated
     * @throws NullPointerException if {@code reference} is null
     */
    public static <T> T notNull(final T reference) {
        if (reference == null) {
            throw new NullPointerException();
        }
        return reference;
    }
}
