1 /*
2 * Copyright (c) 2003, 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 package nsk.jvmti.PopFrame;
25
26 import nsk.share.Wicket;
27 import java.io.PrintStream;
28
29 /**
30 * This test checks that after popping a method's frame by the JVMTI
31 * function <code>PopFrame()</code>:
32 * <li>the method arguments will be added back and any changes to
33 * the arguments, which occurred in the called method, will remain
34 * <li>changes to global state, which occurred in the called method,
35 * will remain
36 * <li>no JVMTI events are generated by the function <code>PopFrame()</code>
37 * <br><br>The test was changed due to the bug 4448675.
38 */
39 public class popframe003 {
40 public static final int PASSED = 0;
41 public static final int FAILED = 2;
42 static final int JCK_STATUS_BASE = 95;
43
44 private popframe003p popFrameClsThr;
45
46 static {
47 try {
48 System.loadLibrary("popframe003");
49 } catch (UnsatisfiedLinkError e) {
50 System.err.println("Could not load popframe003 library");
51 System.err.println("java.library.path:" +
52 System.getProperty("java.library.path"));
53 throw e;
54 }
55 }
56
57 native static int doPopFrame(popframe003p popFrameClsThr);
58 native static int suspThread(popframe003p popFrameClsThr);
59 native static int resThread(popframe003p popFrameClsThr);
60
61 public static void main(String[] argv) {
62 argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
63
64 System.exit(run(argv, System.out) + JCK_STATUS_BASE);
65 }
66
67 public static int run(String argv[], PrintStream out) {
68 return new popframe003().runIt(argv, out);
69 }
70
71 private int runIt(String argv[], PrintStream out) {
72 int retValue = 0;
73
74 popFrameClsThr = new popframe003p("Tested Thread", out);
75 // start the child thread
76 popFrameClsThr.start();
77 popFrameClsThr.startingBarrier.waitFor();
78 // pause until the child thread exits notification-block
79 synchronized (popFrameClsThr.barrier) {
80 }
81
82 out.println("Going to suspend the thread...");
83 retValue = suspThread(popFrameClsThr);
84 if (retValue != PASSED) {
85 out.println("TEST: failed to suspend thread");
86 return FAILED;
87 }
88
89 // pop the frame
90 out.println("Going to pop a frame...");
91 retValue = doPopFrame(popFrameClsThr);
92
93 popFrameClsThr.popFrameHasBeenDone();
94
95 if (retValue != PASSED) {
96 out.println("TEST: failed to pop frame");
97 resThread(popFrameClsThr);
98 return FAILED;
99 }
100
101 out.println("Going to resume the thread...");
102 retValue = resThread(popFrameClsThr);
103 if (retValue != PASSED) {
104 out.println("TEST: failed to resume thread");
105 return FAILED;
106 }
107
108 try {
109 popFrameClsThr.join();
110 } catch (InterruptedException e) {
111 out.println("TEST INCOMPLETE: caught " + e);
112 return FAILED;
113 }
114
115 /* check that any changes for the static global fields,
116 * which occurred in the called method, remain
117 */
118 if (popframe003p.bytePubStatGlFld != 2 || popframe003p.shortPubStatGlFld != 3 ||
119 popframe003p.intPubStatGlFld != 4 || popframe003p.longPubStatGlFld != 5L ||
120 popframe003p.floatPubStatGlFld != 6.2F || popframe003p.doublePubStatGlFld != 7.35D ||
121 popframe003p.charPubStatGlFld != 'b' || popframe003p.booleanPubStatGlFld != true ||
122 !popframe003p.strPubStatGlFld.equals("sttc glbl fld")) {
123 out.println("TEST FAILED: changes for the static fields of a class,\n" +
124 "\twhich have been made in the popped frame's method, did not remain:\n" +
125 "\tstatic fields values:\n\t\tbytePubStatGlFld=" + popframe003p.bytePubStatGlFld + "\texpected: 2\n" +
126 "\t\tshortPubStatGlFld=" + popframe003p.shortPubStatGlFld + "\texpected: 3\n" +
127 "\t\tintPubStatGlFld=" + popframe003p.intPubStatGlFld + "\texpected: 4\n" +
128 "\t\tlongPubStatGlFld=" + popframe003p.longPubStatGlFld + "\texpected: 5\n" +
129 "\t\tfloatPubStatGlFld=" + popframe003p.floatPubStatGlFld + "\texpected: 6.2\n" +
130 "\t\tdoublePubStatGlFld=" + popframe003p.doublePubStatGlFld + "\texpected: 7.35\n" +
131 "\t\tcharPubStatGlFld='" + popframe003p.charPubStatGlFld + "'\texpected: 'b'\n" +
132 "\t\tbooleanPubStatGlFld=" + popframe003p.booleanPubStatGlFld + "\texpected: true\n" +
133 "\t\tstrPubStatGlFld=\"" + popframe003p.strPubStatGlFld + "\"\texpected: \"sttc glbl fld\"");
134 return FAILED;
135 } else {
136 out.println("Check #6 PASSED: changes for the static fields of a class,\n" +
137 "\twhich have been made in the popped frame's method, remained\n");
138 }
139
140 return popframe003p.totRes;
141 }
142 }