langtools/test/tools/javac/TryWithResources/TwrMultiCatch.java
author darcy
Tue, 25 Jan 2011 17:02:56 -0800
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7013420: Project Coin: remove general expression support from try-with-resources statement Reviewed-by: mcimadamore, jjg
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/*
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 * Copyright (c) 2010, 2011, 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 6911256 6964740 7013420
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 * @author Joseph D. Darcy
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 * @summary Test that TWR and multi-catch play well together
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 * @compile TwrMultiCatch.java
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 * @run main TwrMultiCatch
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 */
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import java.io.IOException;
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public class TwrMultiCatch implements AutoCloseable {
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    private final Class<? extends Exception> exceptionClass;
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    private TwrMultiCatch(Class<? extends Exception> exceptionClass) {
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        this.exceptionClass = exceptionClass;
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    }
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    public static void main(String... args) {
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        test(new TwrMultiCatch(CustomCloseException1.class),
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             CustomCloseException1.class);
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        test(new TwrMultiCatch(CustomCloseException2.class),
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             CustomCloseException2.class);
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    }
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    private static void test(TwrMultiCatch twrMultiCatch,
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                     Class<? extends Exception> expected) {
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        try(TwrMultiCatch tmc = twrMultiCatch) {
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            System.out.println(tmc.toString());
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        } catch (CustomCloseException1 |
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                 CustomCloseException2 exception) {
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            if (!exception.getClass().equals(expected) ) {
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                throw new RuntimeException("Unexpected catch!");
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            }
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        }
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    }
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    public void close() throws CustomCloseException1, CustomCloseException2 {
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        Throwable t;
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        try {
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             t = exceptionClass.newInstance();
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        } catch(ReflectiveOperationException rfe) {
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            throw new RuntimeException(rfe);
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        }
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        try {
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            throw t;
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        } catch (CustomCloseException1 |
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                 CustomCloseException2 exception) {
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            throw exception;
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        } catch (Throwable throwable) {
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            throw new RuntimeException(throwable);
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        }
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    }
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}
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class CustomCloseException1 extends Exception {}
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class CustomCloseException2 extends Exception {}