1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/compiler/6865265/StackOverflowBug.java Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,89 @@
1.4 +/*
1.5 + * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +/**
1.29 + * @test
1.30 + * @bug 6865265
1.31 + * @summary JVM crashes with "missing exception handler" error
1.32 + * @author volker.simonis@sap.com
1.33 + *
1.34 + * @run main/othervm -XX:CompileThreshold=100 -Xbatch -Xss248k StackOverflowBug
1.35 + */
1.36 +
1.37 +
1.38 +public class StackOverflowBug {
1.39 +
1.40 + public static int run() {
1.41 + try {
1.42 + try {
1.43 + return run();
1.44 + } catch (Throwable e) {
1.45 + // Notice that the class 'Throwable' is NOT resolved by the verifier,
1.46 + // because the verifier only checks if 'Throwable' is assignable to
1.47 + // 'java.lang.Throwable' and this check succeeds immediately if the two
1.48 + // types have equal names (see 'VerificationType::is_assignable_from' which
1.49 + // is called from 'ClassVerifier::verify_exception_handler_table').
1.50 + // This is strange, because if the two classes have different names,
1.51 + // 'is_assignable_from()' calls 'is_reference_assignable_from()' which resolves
1.52 + // both classes by calling 'SystemDictionary::resolve_or_fail()'. This call
1.53 + // also takes into account the current class loader (i.e. the one which was used
1.54 + // to load this class) and would place a corresponding
1.55 + // "java.lang.Throwable / current-Classloader" entry into the system dictionary.
1.56 + // This would in turn allow C2 to see 'java.lang.Throwable' as "loaded"
1.57 + // (see 'Parse::catch_inline_exceptions()') when this method is compiled.
1.58 + return 42;
1.59 + }
1.60 + }
1.61 + finally {
1.62 + }
1.63 + }
1.64 +
1.65 + public static void main(String argv[]) {
1.66 + run();
1.67 + }
1.68 +}
1.69 +
1.70 +/*
1.71 + public static int run();
1.72 + Code:
1.73 + 0: invokestatic #2 // Method run:()I
1.74 + 3: istore_0
1.75 + 4: iload_0
1.76 + 5: ireturn
1.77 + 6: astore_0
1.78 + 7: bipush 42
1.79 + 9: istore_1
1.80 + 10: iload_1
1.81 + 11: ireturn
1.82 + 12: astore_2
1.83 + 13: aload_2
1.84 + 14: athrow
1.85 + Exception table:
1.86 + from to target type
1.87 + 0 4 6 Class java/lang/Throwable
1.88 + 0 4 12 any
1.89 + 6 10 12 any
1.90 + 12 13 12 any
1.91 +
1.92 + */
