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test/tools/javac/TryWithResources/DuplicateResource.java@2eb010b6cb22 (annotated)

test/tools/javac/TryWithResources/DuplicateResource.java

Thu, 31 Aug 2017 15:17:03 +0800

author

aoqi

date

Thu, 31 Aug 2017 15:17:03 +0800

changeset 2525

2eb010b6cb22

parent 1013

8eb952f43b11

parent 0

959103a6100f

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/*
aoqi@0	25	* @test
aoqi@0	26	* @bug 6911256 6964740 6965277 7013420
aoqi@0	27	* @author Maurizio Cimadamore
aoqi@0	28	* @summary Check that lowered try-with-resources block does not end up creating resource twice
aoqi@0	29	*/
aoqi@0	30
aoqi@0	31	import java.util.ArrayList;
aoqi@0	32
aoqi@0	33	public class DuplicateResource {
aoqi@0	34
aoqi@0	35	static class TestResource implements AutoCloseable {
aoqi@0	36	TestResource() {
aoqi@0	37	resources.add(this);
aoqi@0	38	}
aoqi@0	39	boolean isClosed = false;
aoqi@0	40	public void close() throws Exception {
aoqi@0	41	isClosed = true;
aoqi@0	42	}
aoqi@0	43	}
aoqi@0	44
aoqi@0	45	static ArrayList<TestResource> resources = new ArrayList<TestResource>();
aoqi@0	46
aoqi@0	47	public static void main(String[] args) {
aoqi@0	48	try(TestResource tr = new TestResource()) {
aoqi@0	49	//do something
aoqi@0	50	} catch (Exception e) {
aoqi@0	51	throw new AssertionError("Shouldn't reach here", e);
aoqi@0	52	}
aoqi@0	53	check();
aoqi@0	54	}
aoqi@0	55
aoqi@0	56	public static void check() {
aoqi@0	57	if (resources.size() != 1) {
aoqi@0	58	throw new AssertionError("Expected one resource, found: " + resources.size());
aoqi@0	59	}
aoqi@0	60	TestResource resource = resources.get(0);
aoqi@0	61	if (!resource.isClosed) {
aoqi@0	62	throw new AssertionError("Resource used in try-with-resources block has not been automatically closed");
aoqi@0	63	}
aoqi@0	64	}
aoqi@0	65	}