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test/tools/javac/TryWithResources/TwrSuppression.java@38e2c23309f1 (annotated)

test/tools/javac/TryWithResources/TwrSuppression.java

Mon, 02 Aug 2010 13:35:39 -0700

author

darcy

date

Mon, 02 Aug 2010 13:35:39 -0700

changeset 622

38e2c23309f1

child 745

4328728e0409

permissions

-rw-r--r--

6971877: Project Coin: improve semantics of suppressed exceptions in try-with-resources
Reviewed-by: jjb

darcy@622	1	/*
darcy@622	2	* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
darcy@622	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
darcy@622	4	*
darcy@622	5	* This code is free software; you can redistribute it and/or modify it
darcy@622	6	* under the terms of the GNU General Public License version 2 only, as
darcy@622	7	* published by the Free Software Foundation.
darcy@622	8	*
darcy@622	9	* This code is distributed in the hope that it will be useful, but WITHOUT
darcy@622	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
darcy@622	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
darcy@622	12	* version 2 for more details (a copy is included in the LICENSE file that
darcy@622	13	* accompanied this code).
darcy@622	14	*
darcy@622	15	* You should have received a copy of the GNU General Public License version
darcy@622	16	* 2 along with this work; if not, write to the Free Software Foundation,
darcy@622	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
darcy@622	18	*
darcy@622	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
darcy@622	20	* or visit www.oracle.com if you need additional information or have any
darcy@622	21	* questions.
darcy@622	22	*/
darcy@622	23
darcy@622	24	/*
darcy@622	25	* @test
darcy@622	26	* @bug 6971877
darcy@622	27	* @author Joseph D. Darcy
darcy@622	28	* @summary Verify a primary exception suppresses all throwables
darcy@622	29	*/
darcy@622	30
darcy@622	31	public class TwrSuppression implements AutoCloseable {
darcy@622	32	public static void main(String... args) throws Throwable {
darcy@622	33	try {
darcy@622	34	try (TwrSuppression r1 = new TwrSuppression(false);
darcy@622	35	TwrSuppression r2 = new TwrSuppression(true)) {
darcy@622	36	throw new RuntimeException();
darcy@622	37	}
darcy@622	38	} catch(RuntimeException e) {
darcy@622	39	Throwable[] suppressedExceptions = e.getSuppressedExceptions();
darcy@622	40	int length = suppressedExceptions.length;
darcy@622	41	if (length != 2)
darcy@622	42	throw new RuntimeException("Unexpected length " + length);
darcy@622	43
darcy@622	44	if (suppressedExceptions[0].getClass() != Error.class ||
darcy@622	45	suppressedExceptions[1].getClass() != Exception.class) {
darcy@622	46	System.err.println("Unexpected suppressed types!");
darcy@622	47	e.printStackTrace();
darcy@622	48	throw new RuntimeException(e);
darcy@622	49	}
darcy@622	50	}
darcy@622	51	}
darcy@622	52
darcy@622	53	private boolean throwError;
darcy@622	54
darcy@622	55	private TwrSuppression(boolean throwError) {
darcy@622	56	this.throwError = throwError;
darcy@622	57	}
darcy@622	58
darcy@622	59	@Override
darcy@622	60	public void close() throws Exception {
darcy@622	61	if (throwError) {
darcy@622	62	throw new Error();
darcy@622	63	} else {
darcy@622	64	throw new Exception();
darcy@622	65	}
darcy@622	66	}
darcy@622	67	}