1 /* 2 * Copyright (c) 2019, 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 8181171 8210457 27 * @summary Break ResolvedMethodTable with redefined nest class. 28 * @library /test/lib 29 * @modules java.base/jdk.internal.misc 30 * @modules java.compiler 31 * java.instrument 32 * jdk.jartool/sun.tools.jar 33 * @compile ../../NamedBuffer.java 34 * @compile redef/Xost.java 35 * @run main RedefineClassHelper 36 * @run main/othervm -javaagent:redefineagent.jar -Xlog:redefine+class+update*=debug,membername+table=debug MethodHandleDeletedMethod 37 */ 38 39 import java.io.File; 40 import java.io.FileInputStream; 41 import java.lang.invoke.*; 42 43 class Host { 44 static MethodHandle fooMH; 45 46 static class A { 47 private static void foo() { System.out.println("OLD foo called"); } 48 } 49 static void bar() throws NoSuchMethodError { 50 A.foo(); 51 } 52 static void barMH() throws Throwable { 53 fooMH.invokeExact(); 54 } 55 56 public static void reresolve() throws Throwable { 57 fooMH = MethodHandles.lookup().findStatic(A.class, "foo", MethodType.methodType(void.class)); 58 } 59 60 static { 61 try { 62 fooMH = MethodHandles.lookup().findStatic(A.class, "foo", MethodType.methodType(void.class)); 63 } catch (ReflectiveOperationException ex) { 64 } 65 } 66 } 67 68 public class MethodHandleDeletedMethod { 69 70 static final String DEST = System.getProperty("test.classes"); 71 static final boolean VERBOSE = false; 72 73 private static byte[] bytesForHostClass(char replace) throws Throwable { 74 return NamedBuffer.bytesForHostClass(replace, "Host$A"); 75 } 76 77 public static void main(java.lang.String[] unused) throws Throwable { 78 Host h = new Host(); 79 h.bar(); 80 h.barMH(); 81 byte[] buf = bytesForHostClass('X'); 82 RedefineClassHelper.redefineClass(Host.A.class, buf); 83 try { 84 h.bar(); // call deleted Method directly 85 throw new RuntimeException("Failed, expected NSME"); 86 } catch (NoSuchMethodError nsme) { 87 System.out.println("Received expected NSME"); 88 } 89 try { 90 h.barMH(); // call through MethodHandle for deleted Method 91 throw new RuntimeException("Failed, expected NSME"); 92 } catch (NoSuchMethodError nsme) { 93 System.out.println("Received expected NSME"); 94 } 95 System.out.println("Passed."); 96 } 97 }