jdk8-mips64-public/hotspot: test/serviceability/jvmti/UnresolvedClassAgent.java@dbb05f6d93c4

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

     1 /*

     2  * Copyright (c) 2014, 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  */

    24 import java.io.DataInputStream;

    25 import java.io.File;

    26 import java.io.FileInputStream;

    27 import java.lang.instrument.ClassDefinition;

    28 import java.lang.instrument.Instrumentation;

    30 /*

    31  * This class is present during compilation, but will be deleted before execution.

    32  */

    33 class MyUnresolvedClass {

    34     static void bar() {

    35     }

    36 }

    38 class MyRedefinedClass {

    39     static void foo() {

    40         MyUnresolvedClass.bar();

    41     }

    42 }

    44 public class UnresolvedClassAgent {

    45     public static void main(String... args) {

    46     }

    48     public static void premain(String args, Instrumentation inst) throws Exception {

    49         try {

    50             MyRedefinedClass.foo();

    51         } catch(NoClassDefFoundError err) {

    52             System.out.println("NoClassDefFoundError (expected)");

    53         }

    55         File f = new File(System.getProperty("test.classes"), "MyRedefinedClass.class");

    56         byte[] buf = new byte[(int)f.length()];

    57         try (DataInputStream dis = new DataInputStream(new FileInputStream(f))) {

    58             dis.readFully(buf);

    59         }

    60         ClassDefinition cd = new ClassDefinition(MyRedefinedClass.class, buf);

    61         inst.redefineClasses(new ClassDefinition[] {cd});

    63         try {

    64             MyRedefinedClass.foo();

    65         } catch(NoClassDefFoundError err) {

    66             System.out.println("NoClassDefFoundError (expected again)");

    67         }

    68     }

    69 }

Mercurial > jdk8-mips64-public > hotspot / file revision

test/serviceability/jvmti/UnresolvedClassAgent.java@dbb05f6d93c4

test/serviceability/jvmti/UnresolvedClassAgent.java