/* * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /** * @test * @bug 8039390 * @summary Basic test for null argument */ import java.util.Formatter; import java.util.Locale; public class NullArg { public static void main(String [] args) { char[] cs = new char[] { 'b', 'B', 'h', 'H', 's', 'S', 'c', 'C', 'd', 'o', 'x', 'X', 'e', 'E', 'f', 'g', 'G', 'a', 'A', 't', 'T', }; char[] tcs = new char[] { 'H', 'I', 'k', 'l', 'l', 'M', 'S', 'L', 'N', 'p', 'z', 'Z', 's', 'Q', 'B', 'b', 'h', 'A', 'a', 'C', 'Y', 'y', 'j', 'm', 'd', 'e', 'R', 'T', 'r', 'D', 'F', 'c' }; for (char c : cs) { String expected = (c == 'b' || c == 'B') ? "false" : "null"; if (Character.isUpperCase(c)) { expected = expected.toUpperCase(Locale.ROOT); } if (c == 't' || c == 'T') { for (char ct : tcs) { if (!String.format("%" + c + ct, null).equals(expected)) { throw new RuntimeException("%t" + ct + "null check failed."); } } } else { if (!String.format("%" + c , null).equals(expected)) { throw new RuntimeException("%" + c + "null check failed."); } } } } }