1 /* 2 * Copyright (c) 2007, 2016, 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 * @test 26 * @bug 6627362 27 * @summary javac generates code that uses array.clone, 28 * which is not available on JavaCard 29 * @modules jdk.compiler 30 * jdk.jdeps/com.sun.tools.javap 31 */ 32 33 import java.io.*; 34 import java.lang.reflect.*; 35 import java.net.*; 36 import java.util.*; 37 38 public class T6627362 { 39 static String testSrc = System.getProperty("test.src", "."); 40 41 public static void main(String... args) throws Exception { 42 new T6627362().run(); 43 } 44 45 public void run() throws Exception { 46 testStandard(); 47 testNoClone(); 48 if (errors > 0) 49 throw new Error(errors + " test cases failed"); 50 } 51 52 void testStandard() throws Exception { 53 // compile and disassemble E.java, check for reference to Object.clone() 54 File x = new File(testSrc, "x"); 55 String[] jcArgs = { "-d", ".", 56 new File(x, "E.java").getPath() }; 57 compile(jcArgs); 58 59 String[] jpArgs = { "-classpath", ".", "-c", "E" }; 60 61 StringWriter sw = new StringWriter(); 62 javap(new PrintWriter(sw, true), jpArgs); 63 check(sw.toString(), "Method \"[LE;\".clone:()Ljava/lang/Object;"); 64 callValues(); 65 } 66 67 void testNoClone() throws Exception { 68 // compile and disassemble E.java, using modified Object.java, 69 // check for reference to System.arraycopy 70 File x = new File(testSrc, "x"); 71 String[] jcArgs = { "-d", ".", "--patch-module", "java.base=" + x.getAbsolutePath(), 72 new File(x, "E.java").getPath(), 73 new File(new File(new File(x, "java"), "lang"), "Object.java").getPath()}; 74 compile(jcArgs); 75 76 String[] jpArgs = { "-classpath", ".", "-c", "E" }; 77 78 StringWriter sw = new StringWriter(); 79 javap(new PrintWriter(sw, true), jpArgs); 80 check(sw.toString(), "// Method java/lang/System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V"); 81 callValues(); 82 } 83 84 void compile(String... args) { 85 int rc = com.sun.tools.javac.Main.compile(args); 86 if (rc != 0) 87 throw new Error("javac failed: " + Arrays.asList(args) + ": " + rc); 88 } 89 90 void javap(PrintWriter out, String... args) throws Exception { 91 int rc = com.sun.tools.javap.Main.run(args, out); 92 if (rc != 0) 93 throw new Error("javap failed: " + Arrays.asList(args) + ": " + rc); 94 } 95 96 void check(String s, String require) { 97 System.out.println("Checking:\n" + s); 98 if (s.indexOf(require) == -1) { 99 System.err.println("Can't find " + require); 100 errors++; 101 } 102 } 103 104 void callValues() { 105 try { 106 File dot = new File(System.getProperty("user.dir")); 107 ClassLoader cl = new URLClassLoader(new URL[] { dot.toURL() }); 108 Class<?> e_class = cl.loadClass("E"); 109 Method m = e_class.getMethod("values", new Class[] { }); 110 //System.err.println(m); 111 Object o = m.invoke(null, (Object[]) null); 112 List<Object> v = Arrays.asList((Object[]) o); 113 if (!v.toString().equals("[a, b, c]")) 114 throw new Error("unexpected result for E.values(): " + v); 115 } catch (Exception e) { 116 throw new Error(e); 117 } 118 } 119 120 int errors; 121 } 122