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 6496524
27 * @summary Setting breakpoint in jdb crashes Hotspot JVM
28 *
29 * @author jjh
30 *
31 * @key intermittent
32 * @modules jdk.jdi
33 * @run build TestScaffold VMConnection TargetListener TargetAdapter
34 * @run compile -g BreakpointTest.java
35 * @run driver BreakpointTest
36 */
37 import com.sun.jdi.*;
38 import com.sun.jdi.event.*;
39 import com.sun.jdi.request.*;
40
41 import java.util.*;
42
43 // The debuggee just runs in a loop. The debugger
44 // sets a bkpt on the Math.random call. When the
45 // bkpt is hit, the debugger disables it, resumes
46 // the debuggee, waits a bit, and enables the bkpt again.
47
48 class BreakpointTarg {
49 public final static int BKPT_LINE = 56;
50 // LINE NUMBER SENSITIVE
51
52 public static long count;
53 static void doit() {
54 Object[] roots = new Object[200000];
55 while (true) {
56 int index = (int) (Math.random() * roots.length); // BKPT_LINE
57 // This println makes the test pass
58 //System.out.println("Debuggee: index = " + index);
59 roots[index] = new Object(); // bkpt here passes
60 // and null instead of new Object()
61 // passes
62 count++;
63 }
64 }
65
66 public static void main(String[] args) {
67 doit();
68 }
69 }
70
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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 // THIS TEST IS LINE NUMBER SENSITIVE
25
26 /**
27 * @test
28 * @bug 6496524
29 * @key intermittent
30 * @summary Setting breakpoint in jdb crashes Hotspot JVM
31 * @author jjh
32 *
33 * @run build TestScaffold VMConnection TargetListener TargetAdapter
34 * @run compile -g BreakpointTest.java
35 * @run driver BreakpointTest
36 */
37
38 import com.sun.jdi.*;
39 import com.sun.jdi.event.*;
40 import com.sun.jdi.request.*;
41
42 import java.util.*;
43
44 // The debuggee just runs in a loop. The debugger
45 // sets a bkpt on the Math.random call. When the
46 // bkpt is hit, the debugger disables it, resumes
47 // the debuggee, waits a bit, and enables the bkpt again.
48
49 class BreakpointTarg {
50 public final static int BKPT_LINE = 56;
51
52 public static long count;
53 static void doit() {
54 Object[] roots = new Object[200000];
55 while (true) {
56 int index = (int) (Math.random() * roots.length); // BKPT_LINE
57 // This println makes the test pass
58 //System.out.println("Debuggee: index = " + index);
59 roots[index] = new Object(); // bkpt here passes
60 // and null instead of new Object()
61 // passes
62 count++;
63 }
64 }
65
66 public static void main(String[] args) {
67 doit();
68 }
69 }
70
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