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test/tools/javac/TryWithResources/ResInNestedExpr.java@683b3e7e05a7 (annotated)

test/tools/javac/TryWithResources/ResInNestedExpr.java

Mon, 26 Oct 2015 13:23:30 -0700

author

asaha

date

Mon, 26 Oct 2015 13:23:30 -0700

changeset 2999

683b3e7e05a7

parent 0

959103a6100f

permissions

-rw-r--r--

Added tag jdk8u76-b00 for changeset 10ffafaf5340

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2010, 2013, 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 8025113
aoqi@0	27	* @author sogoel
aoqi@0	28	* @summary Resource creation in nested expressions
aoqi@0	29	*/
aoqi@0	30
aoqi@0	31	/**
aoqi@0	32	* This test checks for resource creation in nested expressions.
aoqi@0	33	* test1() - Create 3 resource in nested new expressions, style 1
aoqi@0	34	* test2() - Create 3 resource in nested new expressions, style 2
aoqi@0	35	* test3() - Create 4 resources with resources as parameters: new expression; typeid & new expression
aoqi@0	36	*/
aoqi@0	37
aoqi@0	38	public class ResInNestedExpr {
aoqi@0	39
aoqi@0	40	static final int expected = 5;
aoqi@0	41	static int closed = 0;
aoqi@0	42
aoqi@0	43	static void closing(String clazz) {
aoqi@0	44	closed++;
aoqi@0	45	}
aoqi@0	46
aoqi@0	47	static void checkClosedCount() {
aoqi@0	48	if (expected != closed) {
aoqi@0	49	throw new RuntimeException("Did not find enough closed resources."
aoqi@0	50	+ "Expected " + expected + ", but found " + closed);
aoqi@0	51	}
aoqi@0	52	}
aoqi@0	53	/**
aoqi@0	54	* The "expected output" is each class name gotten with getSimpleName() to unclutter things.
aoqi@0	55	* Each test method returns a classname of the resource and that is compared with
aoqi@0	56	* values in this array.
aoqi@0	57	*/
aoqi@0	58	static String[] expectedOutput = {
aoqi@0	59	"aResource::bResource::cResource", //test1
aoqi@0	60	"aResource::bResource::cResource&aResource::cResource", //test3
aoqi@0	61	"aResource::bResource::cResource&aResource::cResource"}; //test2
aoqi@0	62
aoqi@0	63	static void compare(String s1, String s2) {
aoqi@0	64	if (s1.compareTo(s2) != 0) {
aoqi@0	65	throw new RuntimeException(s1 + "!=" + s2);
aoqi@0	66	}
aoqi@0	67	}
aoqi@0	68
aoqi@0	69	String test1() {
aoqi@0	70	String ret = null;
aoqi@0	71	try (bResource br = new bResource(new cResource());
aoqi@0	72	aResource ar = new aResource(br)) {
aoqi@0	73	ret = ar.getClass().getSimpleName() + "::" +
aoqi@0	74	ar.getB().getClass().getSimpleName() + "::" +
aoqi@0	75	ar.getB().getC().getClass().getSimpleName();
aoqi@0	76	}
aoqi@0	77	return ret;
aoqi@0	78	}
aoqi@0	79
aoqi@0	80	String test2() {
aoqi@0	81	String ret = null;
aoqi@0	82	try (aResource ar = new aResource(new bResource(new cResource()), new cResource())) {
aoqi@0	83	String abc = ar.getClass().getSimpleName() + "::" +
aoqi@0	84	ar.getB().getClass().getSimpleName() + "::" +
aoqi@0	85	ar.getB().getC().getClass().getSimpleName();
aoqi@0	86	String ac = ar.getClass().getSimpleName() + "::" +
aoqi@0	87	ar.getC().getClass().getSimpleName();
aoqi@0	88	ret = abc + "&" + ac;
aoqi@0	89	}
aoqi@0	90	return ret;
aoqi@0	91	}
aoqi@0	92
aoqi@0	93	String test3() {
aoqi@0	94	String ret = null;
aoqi@0	95	try (bResource br = new bResource(new cResource());
aoqi@0	96	aResource ar = new aResource(br, new cResource())) {
aoqi@0	97	String abc = ar.getClass().getSimpleName() + "::" +
aoqi@0	98	ar.getB().getClass().getSimpleName() + "::" +
aoqi@0	99	ar.getB().getC().getClass().getSimpleName();
aoqi@0	100	String ac = ar.getClass().getSimpleName() + "::" +
aoqi@0	101	ar.getC().getClass().getSimpleName();
aoqi@0	102	ret = abc + "&" + ac;
aoqi@0	103	}
aoqi@0	104	return ret;
aoqi@0	105	}
aoqi@0	106
aoqi@0	107	public static void main(String... args) {
aoqi@0	108	ResInNestedExpr t = new ResInNestedExpr();
aoqi@0	109	int eo = 0;
aoqi@0	110	compare(expectedOutput[eo++], t.test1());
aoqi@0	111	compare(expectedOutput[eo++], t.test3());
aoqi@0	112	compare(expectedOutput[eo++], t.test2());
aoqi@0	113	ResInNestedExpr.checkClosedCount();
aoqi@0	114	}
aoqi@0	115
aoqi@0	116	/**
aoqi@0	117	* A resource to implement AutoCloseable
aoqi@0	118	* Contains two other resources as data items.
aoqi@0	119	*/
aoqi@0	120	static class aResource implements AutoCloseable {
aoqi@0	121
aoqi@0	122	bResource bR;
aoqi@0	123	cResource cR;
aoqi@0	124
aoqi@0	125	public aResource() {
aoqi@0	126	bR = null;
aoqi@0	127	cR = null;
aoqi@0	128	}
aoqi@0	129
aoqi@0	130	public aResource(bResource br) {
aoqi@0	131	bR = br;
aoqi@0	132	}
aoqi@0	133
aoqi@0	134	public aResource(cResource cr) {
aoqi@0	135	cR = cr;
aoqi@0	136	}
aoqi@0	137
aoqi@0	138	public aResource(bResource br, cResource cr) {
aoqi@0	139	bR = br;
aoqi@0	140	cR = cr;
aoqi@0	141	}
aoqi@0	142
aoqi@0	143	public bResource getB() {
aoqi@0	144	return bR;
aoqi@0	145	}
aoqi@0	146
aoqi@0	147	public cResource getC() {
aoqi@0	148	return cR;
aoqi@0	149	}
aoqi@0	150
aoqi@0	151	@Override
aoqi@0	152	public void close() {
aoqi@0	153	ResInNestedExpr.closing(this.getClass().getName());
aoqi@0	154	}
aoqi@0	155	}
aoqi@0	156
aoqi@0	157	/**
aoqi@0	158	* A resource to implement AutoCloseable
aoqi@0	159	* Contains one other resources as a data item.
aoqi@0	160	*/
aoqi@0	161	static class bResource implements AutoCloseable {
aoqi@0	162
aoqi@0	163	cResource cR;
aoqi@0	164
aoqi@0	165	public bResource() {
aoqi@0	166	cR = null;
aoqi@0	167	}
aoqi@0	168
aoqi@0	169	public bResource(cResource cr) {
aoqi@0	170	cR = cr;
aoqi@0	171	}
aoqi@0	172
aoqi@0	173	public cResource getC() {
aoqi@0	174	return cR;
aoqi@0	175	}
aoqi@0	176
aoqi@0	177	@Override
aoqi@0	178	public void close() {
aoqi@0	179	ResInNestedExpr.closing(this.getClass().getName());
aoqi@0	180	}
aoqi@0	181	}
aoqi@0	182
aoqi@0	183	/** A resource to implement AutoCloseable */
aoqi@0	184	static class cResource implements AutoCloseable {
aoqi@0	185
aoqi@0	186	public cResource() {
aoqi@0	187	}
aoqi@0	188
aoqi@0	189	@Override
aoqi@0	190	public void close() {
aoqi@0	191	ResInNestedExpr.closing(this.getClass().getName());
aoqi@0	192	}
aoqi@0	193	}
aoqi@0	194	}
aoqi@0	195