| /* |
| * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| /** |
| * @test |
| * @bug 6865265 |
| * @summary JVM crashes with "missing exception handler" error |
| * @author volker.simonis@sap.com |
| * |
| * @run main/othervm -XX:CompileThreshold=100 -Xbatch -Xss248k StackOverflowBug |
| */ |
| |
| |
| public class StackOverflowBug { |
| |
| public static int run() { |
| try { |
| try { |
| return run(); |
| } catch (Throwable e) { |
| // Notice that the class 'Throwable' is NOT resolved by the verifier, |
| // because the verifier only checks if 'Throwable' is assignable to |
| // 'java.lang.Throwable' and this check succeeds immediately if the two |
| // types have equal names (see 'VerificationType::is_assignable_from' which |
| // is called from 'ClassVerifier::verify_exception_handler_table'). |
| // This is strange, because if the two classes have different names, |
| // 'is_assignable_from()' calls 'is_reference_assignable_from()' which resolves |
| // both classes by calling 'SystemDictionary::resolve_or_fail()'. This call |
| // also takes into account the current class loader (i.e. the one which was used |
| // to load this class) and would place a corresponding |
| // "java.lang.Throwable / current-Classloader" entry into the system dictionary. |
| // This would in turn allow C2 to see 'java.lang.Throwable' as "loaded" |
| // (see 'Parse::catch_inline_exceptions()') when this method is compiled. |
| return 42; |
| } |
| } |
| finally { |
| } |
| } |
| |
| public static void main(String argv[]) { |
| run(); |
| } |
| } |
| |
| /* |
| public static int run(); |
| Code: |
| 0: invokestatic #2 // Method run:()I |
| 3: istore_0 |
| 4: iload_0 |
| 5: ireturn |
| 6: astore_0 |
| 7: bipush 42 |
| 9: istore_1 |
| 10: iload_1 |
| 11: ireturn |
| 12: astore_2 |
| 13: aload_2 |
| 14: athrow |
| Exception table: |
| from to target type |
| 0 4 6 Class java/lang/Throwable |
| 0 4 12 any |
| 6 10 12 any |
| 12 13 12 any |
| |
| */ |
