Mercurial > jdk8-mips64-public > hotspot / annotate
test/serviceability/jvmti/UnresolvedClassAgent.java@dbb05f6d93c4 (annotated)
test/serviceability/jvmti/UnresolvedClassAgent.java
Mon, 28 Jul 2014 15:06:38 -0700
- author
- fzhinkin
- date
- Mon, 28 Jul 2014 15:06:38 -0700
- changeset 6997
- dbb05f6d93c4
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | */ |
| aoqi@0 | 23 | |
| aoqi@0 | 24 | import java.io.DataInputStream; |
| aoqi@0 | 25 | import java.io.File; |
| aoqi@0 | 26 | import java.io.FileInputStream; |
| aoqi@0 | 27 | import java.lang.instrument.ClassDefinition; |
| aoqi@0 | 28 | import java.lang.instrument.Instrumentation; |
| aoqi@0 | 29 | |
| aoqi@0 | 30 | /* |
| aoqi@0 | 31 | * This class is present during compilation, but will be deleted before execution. |
| aoqi@0 | 32 | */ |
| aoqi@0 | 33 | class MyUnresolvedClass { |
| aoqi@0 | 34 | static void bar() { |
| aoqi@0 | 35 | } |
| aoqi@0 | 36 | } |
| aoqi@0 | 37 | |
| aoqi@0 | 38 | class MyRedefinedClass { |
| aoqi@0 | 39 | static void foo() { |
| aoqi@0 | 40 | MyUnresolvedClass.bar(); |
| aoqi@0 | 41 | } |
| aoqi@0 | 42 | } |
| aoqi@0 | 43 | |
| aoqi@0 | 44 | public class UnresolvedClassAgent { |
| aoqi@0 | 45 | public static void main(String... args) { |
| aoqi@0 | 46 | } |
| aoqi@0 | 47 | |
| aoqi@0 | 48 | public static void premain(String args, Instrumentation inst) throws Exception { |
| aoqi@0 | 49 | try { |
| aoqi@0 | 50 | MyRedefinedClass.foo(); |
| aoqi@0 | 51 | } catch(NoClassDefFoundError err) { |
| aoqi@0 | 52 | System.out.println("NoClassDefFoundError (expected)"); |
| aoqi@0 | 53 | } |
| aoqi@0 | 54 | |
| aoqi@0 | 55 | File f = new File(System.getProperty("test.classes"), "MyRedefinedClass.class"); |
| aoqi@0 | 56 | byte[] buf = new byte[(int)f.length()]; |
| aoqi@0 | 57 | try (DataInputStream dis = new DataInputStream(new FileInputStream(f))) { |
| aoqi@0 | 58 | dis.readFully(buf); |
| aoqi@0 | 59 | } |
| aoqi@0 | 60 | ClassDefinition cd = new ClassDefinition(MyRedefinedClass.class, buf); |
| aoqi@0 | 61 | inst.redefineClasses(new ClassDefinition[] {cd}); |
| aoqi@0 | 62 | |
| aoqi@0 | 63 | try { |
| aoqi@0 | 64 | MyRedefinedClass.foo(); |
| aoqi@0 | 65 | } catch(NoClassDefFoundError err) { |
| aoqi@0 | 66 | System.out.println("NoClassDefFoundError (expected again)"); |
| aoqi@0 | 67 | } |
| aoqi@0 | 68 | } |
| aoqi@0 | 69 | } |
