1 /** 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * Used with --patch-module to exercise the replacement or addition of classes 26 * in modules that are linked into the runtime image. 27 */ 28 29 package jdk.test; 30 31 import java.lang.reflect.Module; 32 33 public class Main { 34 35 public static void main(String[] args) throws Exception { 36 37 for (String moduleAndClass : args[0].split(",")) { 38 String mn = moduleAndClass.split("/")[0]; 39 String cn = moduleAndClass.split("/")[1]; 40 41 // load class 42 Class<?> c = Class.forName(cn); 43 44 // check in expected module 45 Module m = c.getModule(); 46 assertEquals(m.getName(), mn); 47 48 // instantiate object 49 Main.class.getModule().addReads(m); 50 Object obj = c.newInstance(); 51 52 // check that the expected version of the class is loaded 53 System.out.print(moduleAndClass); 54 String s = obj.toString(); 55 System.out.println(" says " + s); 56 assertEquals(s, "hi"); 57 58 // check Module getResourceAsStream 59 String rn = cn.replace('.', '/') + ".class"; 60 assertNotNull(m.getResourceAsStream(rn)); 61 } 62 } 63 64 65 static void assertEquals(Object o1, Object o2) { 66 if (!o1.equals(o2)) 67 throw new RuntimeException("assertion failed"); 68 } 69 70 static void assertNotNull(Object o) { 71 if (o == null) 72 throw new RuntimeException("unexpected null"); 73 } 74 }