88 lines
3.2 KiB
Java
88 lines
3.2 KiB
Java
/*
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* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8075118
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* @summary JVM stuck in infinite loop during verification
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* @compile HandlerInTry.jasm
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* @compile IsolatedHandlerInTry.jasm
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* @run main/othervm -Xverify:all LoadHandlerInTry
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*/
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/*
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* This test has two cases:
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*
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* 1. class HandlerInTry: Class HandlerInTry contains a TRY block in a
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* constructor whose handler is inside the same TRY block. The last
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* few bytecodes and exception table look like this:
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*
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* ...
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* 87: athrow
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* 88: astore 4
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* 90: invokestatic #9
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* 93: aload 4
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* 95: athrow
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* 96: return
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* Exception table:
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* from to target type
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* 36 46 53 Class java/lang/Throwable
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* 36 46 88 any
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* 53 90 88 any
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*
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* Note that the target for the third handler in the Exception table is
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* inside its TRY block.
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* Without the fix for bug JDK-8075118, this test will time out.
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*
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*
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* 2. class IsolatedHandlerInTry: Class IsolatedHandlerInTry also contains
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* a TRY block in a constructoer whose handler is inside its TRY block.
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* But the handler is only reachable if an exception is thrown. The
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* handler's bytecodes will not get parsed as part of parsing the TRY
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* block. They will only get parsed as a handler for the TRY block.
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* Since the isolated handler does a 'return', a VerifyError exception
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* should get thrown.
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*/
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public class LoadHandlerInTry {
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public static void main(String[] args) throws Exception {
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System.out.println("Regression test for bug 8075118");
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try {
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Class newClass = Class.forName("HandlerInTry");
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throw new RuntimeException(
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"Failed to throw VerifyError for HandlerInTry");
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} catch (java.lang.VerifyError e) {
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System.out.println("Passed: VerifyError exception was thrown");
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}
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try {
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Class newClass = Class.forName("IsolatedHandlerInTry");
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throw new RuntimeException(
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"Failed to throw VerifyError for IsolatedHandlerInTry");
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} catch (java.lang.VerifyError e) {
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System.out.println("Passed: VerifyError exception was thrown");
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}
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}
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}
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