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test/tools/javac/AnonymousSubclassTest.java@7909abb85562 (annotated)

test/tools/javac/AnonymousSubclassTest.java

Wed, 14 Nov 2018 10:18:25 -0800

author

diazhou

date

Wed, 14 Nov 2018 10:18:25 -0800

changeset 3762

7909abb85562

parent 0

959103a6100f

permissions

-rw-r--r--

Added tag jdk8u201-b04 for changeset a7f48b9dfb82

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2014, 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 8023945
aoqi@0	27	* @summary javac wrongly allows a subclass of an anonymous class
aoqi@0	28	* @library /tools/javac/lib
aoqi@0	29	* @build ToolBox
aoqi@0	30	* @run main AnonymousSubclassTest
aoqi@0	31	*/
aoqi@0	32
aoqi@0	33	import java.util.ArrayList;
aoqi@0	34	import java.io.IOException;
aoqi@0	35
aoqi@0	36	public class AnonymousSubclassTest {
aoqi@0	37	public static void main(String... args) throws Exception {
aoqi@0	38	new AnonymousSubclassTest().run();
aoqi@0	39	}
aoqi@0	40
aoqi@0	41	// To trigger the error we want, first we need to compile
aoqi@0	42	// a class with an anonymous inner class: Foo$1.
aoqi@0	43	final String foo =
aoqi@0	44	"public class Foo {" +
aoqi@0	45	" void m() { Foo f = new Foo() {}; }" +
aoqi@0	46	"}";
aoqi@0	47
aoqi@0	48	// Then, we try to subclass the anonymous class
aoqi@0	49	// Note: we must do this in two classes because a different
aoqi@0	50	// error will be generated if we don't load Foo$1 through the
aoqi@0	51	// class reader.
aoqi@0	52	final String test1 =
aoqi@0	53	"public class Test1 {" +
aoqi@0	54	" void m() {"+
aoqi@0	55	" Foo f1 = new Foo();"+
aoqi@0	56	" Foo f2 = new Foo$1(f1) {};"+
aoqi@0	57	" }" +
aoqi@0	58	"}";
aoqi@0	59
aoqi@0	60	final String test2 =
aoqi@0	61	"public class Test2 {" +
aoqi@0	62	" class T extends Foo$1 {" +
aoqi@0	63	" public T(Foo f) { super(f); }" +
aoqi@0	64	" }"+
aoqi@0	65	"}";
aoqi@0	66
aoqi@0	67	void compOk(String code) throws Exception {
aoqi@0	68	ToolBox.javac(new ToolBox.JavaToolArgs().setSources(code));
aoqi@0	69	}
aoqi@0	70
aoqi@0	71	void compFail(String code) throws Exception {
aoqi@0	72	ArrayList<String> errors = new ArrayList<>();
aoqi@0	73	ToolBox.JavaToolArgs args = new ToolBox.JavaToolArgs();
aoqi@0	74	args.setSources(code)
aoqi@0	75	.appendArgs("-cp", ".", "-XDrawDiagnostics")
aoqi@0	76	.set(ToolBox.Expect.FAIL)
aoqi@0	77	.setErrOutput(errors);
aoqi@0	78	ToolBox.javac(args);
aoqi@0	79
aoqi@0	80	if (!errors.get(0).contains("cant.inherit.from.anon")) {
aoqi@0	81	System.out.println(errors.get(0));
aoqi@0	82	throw new Exception("test failed");
aoqi@0	83	}
aoqi@0	84	}
aoqi@0	85
aoqi@0	86	void run() throws Exception {
aoqi@0	87	compOk(foo);
aoqi@0	88	compFail(test1);
aoqi@0	89	compFail(test2);
aoqi@0	90	}
aoqi@0	91	}