98 lines
3.0 KiB
Java
98 lines
3.0 KiB
Java
/*
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* Copyright (c) 2014, 2016, 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 8023945
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* @summary javac wrongly allows a subclass of an anonymous class
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* @library /tools/lib
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* @modules jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.main
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* @build toolbox.ToolBox toolbox.JavacTask
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* @run main AnonymousSubclassTest
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*/
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import toolbox.JavacTask;
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import toolbox.Task;
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import toolbox.ToolBox;
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public class AnonymousSubclassTest {
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public static void main(String... args) throws Exception {
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new AnonymousSubclassTest().run();
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}
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ToolBox tb = new ToolBox();
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// To trigger the error we want, first we need to compile
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// a class with an anonymous inner class: Foo$1.
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final String foo =
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"public class Foo {" +
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" void m() { Foo f = new Foo() {}; }" +
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"}";
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// Then, we try to subclass the anonymous class
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// Note: we must do this in two classes because a different
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// error will be generated if we don't load Foo$1 through the
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// class reader.
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final String test1 =
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"public class Test1 {" +
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" void m() {"+
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" Foo f1 = new Foo();"+
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" Foo f2 = new Foo$1(f1) {};"+
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" }" +
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"}";
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final String test2 =
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"public class Test2 {" +
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" class T extends Foo$1 {" +
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" public T(Foo f) { super(f); }" +
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" }"+
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"}";
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void compOk(String code) throws Exception {
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new JavacTask(tb)
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.sources(code)
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.run();
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}
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void compFail(String code) throws Exception {
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String errs = new JavacTask(tb)
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.sources(code)
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.classpath(".")
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.options("-XDrawDiagnostics")
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.run(Task.Expect.FAIL)
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.writeAll()
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.getOutput(Task.OutputKind.DIRECT);
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if (!errs.contains("cant.inherit.from.anon")) {
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throw new Exception("test failed");
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}
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}
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void run() throws Exception {
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compOk(foo);
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compFail(test1);
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compFail(test2);
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}
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}
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