langtools/test/tools/javac/Closure4.java

/*
 * Copyright (c) 2001, 2004, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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 */

/*
 * @test
 * @bug 4030374
 * @summary Initialization of up-level links, immediately after super(), occurs too late.
 * @author gafter
 *
 * @compile Closure4.java
 * @run main Closure4
 */

// Make sure the closure is present when the superclass is constructed.
// Specifically, Closure4.$1 must have its Closure4.this initialized when Inner calls foo().

public class Closure4 {

    public int v;

    public Closure4() {
        v = 0;

        Inner i = new Inner() {
            public void foo() {
                if (v != 0) throw new Error();
            }
        };

        i.foo();
    }

    public static void main(String[] arg) {
        new Closure4();
    }
}

class Inner {
    Inner() {
        foo();
    }

    public void foo() { throw new Error(); }
}