diff -r 000000000000 -r f90c822e73f8 test/compiler/6865265/StackOverflowBug.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/compiler/6865265/StackOverflowBug.java Wed Apr 27 01:25:04 2016 +0800 @@ -0,0 +1,89 @@ +/* + * 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 + + */