test/langtools/tools/javac/implicitThis/WhichImplicitThis1.java

/*
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 *
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 * 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).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/**
 * @test
 * @bug 4635044 4787017
 * @summary Invalid error when implicitly referencing enclosing type
 *
 * @compile WhichImplicitThis1.java
 * @run main WhichImplicitThis1
 */

/** Check that non-inheritance (private) prevents enclosing class selection. */
public class WhichImplicitThis1 {
    boolean isMiddle() { return false; }
    private class Middle extends WhichImplicitThis1 {
        boolean isMiddle() { return true; }
        boolean enclIsMiddle() { return WhichImplicitThis1.this.isMiddle(); }
        class Inner {}
        boolean check() {
            return /*?.this.*/new WhichImplicitThis1.Middle().enclIsMiddle();
        }
    }
    public static void main(String[] args) {
        WhichImplicitThis1 t = new WhichImplicitThis1();
        Middle m = t.new Middle();
        if (!m.check()) throw new Error();
    }
}