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 /**
26 * @test
27 * @bug 6865265
28 * @summary JVM crashes with "missing exception handler" error
29 * @author volker.simonis@sap.com
30 *
31 * @run main/othervm -XX:CompileThreshold=100 -Xbatch -Xss512k StackOverflowBug
32 */
33
34
35 public class StackOverflowBug {
36
37 public static int run() {
38 try {
39 try {
40 return run();
41 } catch (Throwable e) {
42 // Notice that the class 'Throwable' is NOT resolved by the verifier,
43 // because the verifier only checks if 'Throwable' is assignable to
44 // 'java.lang.Throwable' and this check succeeds immediately if the two
45 // types have equal names (see 'VerificationType::is_assignable_from' which
46 // is called from 'ClassVerifier::verify_exception_handler_table').
47 // This is strange, because if the two classes have different names,
48 // 'is_assignable_from()' calls 'is_reference_assignable_from()' which resolves
49 // both classes by calling 'SystemDictionary::resolve_or_fail()'. This call
50 // also takes into account the current class loader (i.e. the one which was used
51 // to load this class) and would place a corresponding
52 // "java.lang.Throwable / current-Classloader" entry into the system dictionary.
53 // This would in turn allow C2 to see 'java.lang.Throwable' as "loaded"
54 // (see 'Parse::catch_inline_exceptions()') when this method is compiled.
55 return 42;
56 }
57 }
58 finally {
59 }
60 }
61
62 public static void main(String argv[]) {
63 run();
64 }
65 }
66
67 /*
68 public static int run();
69 Code:
70 0: invokestatic #2 // Method run:()I
71 3: istore_0
72 4: iload_0
73 5: ireturn
74 6: astore_0
75 7: bipush 42
76 9: istore_1
77 10: iload_1
78 11: ireturn
79 12: astore_2
80 13: aload_2
|
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 /**
26 * @test
27 * @bug 6865265
28 * @summary JVM crashes with "missing exception handler" error
29 * @author volker.simonis@sap.com
30 *
31 * @run main/othervm -XX:CompileThreshold=100 -Xbatch -Xss512k
32 * compiler.runtime.StackOverflowBug
33 */
34
35 package compiler.runtime;
36
37 public class StackOverflowBug {
38
39 public static int run() {
40 try {
41 try {
42 return run();
43 } catch (Throwable e) {
44 // Notice that the class 'Throwable' is NOT resolved by the verifier,
45 // because the verifier only checks if 'Throwable' is assignable to
46 // 'java.lang.Throwable' and this check succeeds immediately if the two
47 // types have equal names (see 'VerificationType::is_assignable_from' which
48 // is called from 'ClassVerifier::verify_exception_handler_table').
49 // This is strange, because if the two classes have different names,
50 // 'is_assignable_from()' calls 'is_reference_assignable_from()' which resolves
51 // both classes by calling 'SystemDictionary::resolve_or_fail()'. This call
52 // also takes into account the current class loader (i.e. the one which was used
53 // to load this class) and would place a corresponding
54 // "java.lang.Throwable / current-Classloader" entry into the system dictionary.
55 // This would in turn allow C2 to see 'java.lang.Throwable' as "loaded"
56 // (see 'Parse::catch_inline_exceptions()') when this method is compiled.
57 return 42;
58 }
59 } finally {
60 }
61 }
62
63 public static void main(String argv[]) {
64 run();
65 }
66 }
67
68 /*
69 public static int run();
70 Code:
71 0: invokestatic #2 // Method run:()I
72 3: istore_0
73 4: iload_0
74 5: ireturn
75 6: astore_0
76 7: bipush 42
77 9: istore_1
78 10: iload_1
79 11: ireturn
80 12: astore_2
81 13: aload_2
|