Here you can find the source of nvl(String s)
public static String nvl(String s)
//package com.java2s; /******************************************************************************* * Copyright (c) 2008-2010 Sonatype, Inc. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors:/* w ww . j a va 2s. c o m*/ * Sonatype, Inc. - initial API and implementation *******************************************************************************/ public class Main { public static String nvl(String s) { return s == null ? "" : s; //$NON-NLS-1$ } }