Here you can find the source of addToCollectionIfNotNull(Collection collection, Object value)
public static void addToCollectionIfNotNull(Collection collection, Object value)
//package com.java2s; /*/*from ww w . j a v a 2s .c o m*/ * Hibernate, Relational Persistence for Idiomatic Java * * Copyright (c) 2011, Red Hat Inc. or third-party contributors as * indicated by the @author tags or express copyright attribution * statements applied by the authors. All third-party contributions are * distributed under license by Red Hat Inc.. * * This copyrighted material is made available to anyone wishing to use, modify, * copy, or redistribute it subject to the terms and conditions of the GNU * Lesser General Public License, as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this distribution; if not, write to: * Free Software Foundation, Inc. * 51 Franklin Street, Fifth Floor * Boston, MA 02110-1301 USA */ import java.util.Collection; public class Main { public static void addToCollectionIfNotNull(Collection collection, Object value) { if (value != null && collection != null) { collection.add(value); } } }