langtools/test/tools/javac/TryWithResources/TestTwr09.java
author mchung
Wed, 27 May 2015 13:25:18 -0700
changeset 30846 2b3f379840f0
parent 21714 f5b7edec4304
permissions -rw-r--r--
8074432: Move jdeps and javap to jdk.jdeps module Reviewed-by: jjg, alanb, erikj
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/*
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 * Copyright (c) 2010, 2013, 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     8025113
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 * @author  sogoel
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 * @summary t-w-r completes abruptly if the initialization of resource completes abruptly
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 */
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.File;
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/*
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 * If the initialization of the resource completes abruptly because of a
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 * throw of a value V ... and the automatic ->closing of the resource completes normally,
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 * then the try-with-resources statement completes abruptly because of the throw of value V.
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 */
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public class TestTwr09 {
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    /**
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     * throw from ctor of nested resource
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     * Check first resource is not open.
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     */
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    String test1() {
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        String ret = null;
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        try (ResCloseable tr = new ResCloseable(new ResCloseable("throw from inner resource ctor",3))) {
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            ret = "FAIL";
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        } catch (RuntimeException re) {
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            ret = re.getMessage();
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        }
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        return ret;
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    }
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    /**
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     * throw from ctor of 2nd resource.
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     * 1st resource, FileInputStream should be automatically closed.
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     */
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    String test2() {
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        String ret = null;
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        byte[] buf = new byte[1];
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        try (java.io.ByteArrayInputStream tr = new java.io.ByteArrayInputStream(buf);
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            ResCloseable str = new ResCloseable("throw from inner resource ctor",3)) {
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            ret = "FAIL";
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        } catch (final IOException fe) {
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            ret = "FAIL test2";
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        } catch (RuntimeException re) {
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            ret = "PASS test2";
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        }
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        System.out.println("Ret = " + ret);
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        return ret;
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    }
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    public static void main(String... args) {
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        TestTwr09 t = new TestTwr09();
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        if (t.test1().compareTo("throw from inner resource ctor") != 0) {
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            throw new RuntimeException("FAIL-test1");
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        }
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        if (t.test2().compareTo("PASS test2") != 0) {
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            throw new RuntimeException("FAIL-test2");
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        }
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    }
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}
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/** a simple resource the implements AutoCloseable so it can be used
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 * in twr's resource specification block.
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 */
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class ResCloseable implements AutoCloseable {
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    ResCloseable testres = null;
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    String msg = "default";
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    boolean bOpen = false;
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    public ResCloseable() {
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        bOpen = true;
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    }
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    public ResCloseable(ResCloseable tr) {
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        bOpen = true;
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        msg = tr.getMsg();
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    }
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    public ResCloseable(String s) {
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        bOpen = true;
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        msg = s;
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    }
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    public ResCloseable(String msg, int c) {
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        bOpen = true;
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        if (c == 3) {
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            throw new RuntimeException(msg);
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        }
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    }
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    @Override
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    public void close() {
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        bOpen = false;
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    }
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    public boolean isOpen() {
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        return bOpen;
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    }
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    public String getMsg() {
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        return msg;
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    }
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}
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