1 /*
2  * Copyright (c) 2018, 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 8080406
27  * @summary VM_GetOrSetLocal doesn't check local slot type against requested type
28  *
29  * @compile GetLocalVars.java
30  * @run main/othervm/native -Xcomp -agentlib:GetLocalVars GetLocalVars
31  */
32 
33 
34 public class GetLocalVars {
35     private static final String agentLib = "GetLocalVars";
36 
testLocals(Thread thread)37     static native void testLocals(Thread thread);
getStatus()38     static native int getStatus();
39 
40     public static
main(String[] args)41     void main(String[] args) throws Exception {
42         try {
43             System.loadLibrary(agentLib);
44         } catch (UnsatisfiedLinkError ex) {
45             System.err.println("Failed to load " + agentLib + " lib");
46             System.err.println("java.library.path: " + System.getProperty("java.library.path"));
47             throw ex;
48         }
49         run(args);
50         int status = getStatus();
51         if (status != 0) {
52             throw new RuntimeException("Test GetLocalVars failed with a bad status: " + status);
53         }
54     }
55 
56     public static
run(String argv[])57     void run(String argv[]) {
58         GetLocalVars testedObj = new GetLocalVars();
59         double pi = 3.14d;
60         byte sym = 'X';
61         int year = 2018;
62 
63         staticMeth(sym, testedObj, pi, year);
64     }
65 
66     public static synchronized
staticMeth(byte byteArg, Object objArg, double dblArg, int intArg)67     int staticMeth(byte byteArg, Object objArg, double dblArg, int intArg) {
68         testLocals(Thread.currentThread());
69         {
70             int intLoc = 9999;
71             intArg = intLoc;
72         }
73         return intArg;
74     }
75 }
76