jdk8-mips64-public/hotspot: test/runtime/handlerInTry/LoadHandlerInTry.java@6cbff0651f1a

     1 /*

     2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    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  */

    24 /*

    25  * @test

    26  * @bug 8075118

    27  * @summary Allow a ctor to call super() from a switch bytecode.

    28  * @compile HandlerInTry.jasm

    29  * @compile IsolatedHandlerInTry.jasm

    30  * @run main/othervm -Xverify:all LoadHandlerInTry

    31  */

    33 /*

    34  * This test has two cases:

    35  *

    36  * 1. class HandlerInTry:  Class HandlerInTry contains a TRY block in a

    37  *    constructor whose handler is inside the same TRY block.  The last

    38  *    few bytecodes and exception table look like this:

    39  *

    40  *         ...

    41  *      87: athrow

    42  *      88: astore        4

    43  *      90: invokestatic  #9

    44  *      93: aload         4

    45  *      95: athrow

    46  *      96: return

    47  *    Exception table:

    48  *       from    to  target type

    49  *          36    46    53   Class java/lang/Throwable

    50  *          36    46    88   any

    51  *          53    90    88   any

    52  *

    53  * Note that the target for the third handler in the Exception table is

    54  * inside its TRY block.

    55  * Without the fix for bug JDK-8075118, this test will time out.

    56  *

    57  *

    58  * 2. class IsolatedHandlerInTry: Class IsolatedHandlerInTry also contains

    59  *    a TRY block in a constructoer whose handler is inside its TRY block.

    60  *    But the handler is only reachable if an exception is thrown.  The

    61  *    handler's bytecodes will not get parsed as part of parsing the TRY

    62  *    block.  They will only get parsed as a handler for the TRY block.

    63  *    Since the isolated handler does a 'return', a VerifyError exception

    64  *    should get thrown.

    65  */

    67 public class LoadHandlerInTry {

    69     public static void main(String[] args) throws Exception {

    70         System.out.println("Regression test for bug 8075118");

    71         try {

    72             Class newClass = Class.forName("HandlerInTry");

    73         } catch (Exception e) {

    74             System.out.println("Failed: Exception was thrown: " + e.toString());

    75             throw e;

    76         }

    78         try {

    79             Class newClass = Class.forName("IsolatedHandlerInTry");

    80             throw new RuntimeException(

    81                  "Failed to throw VerifyError for IsolatedHandlerInTry");

    82         } catch (java.lang.VerifyError e) {

    83             System.out.println("Passed: VerifyError exception was thrown");

    84         }

    85     }

    86 }

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