langtools/test/tools/javac/ThrowsIntersection_3.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
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 * 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 4042259
 * @summary Check that a class can inherit multiple methods with conflicting throws clauses.
 * @author maddox
 *
 * @run compile/fail ThrowsIntersection_3.java
 */

package ThrowsIntersection_3;

class Ex1 extends Exception {}
class Ex2 extends Exception {}

interface a {
  int m1() throws Ex1;
}

interface b {
  int m1() throws Ex2;
}

// Should fail regardless of order in which superinterfaces appear.
//abstract class c implements a, b {}
abstract class c implements b, a {}

class d extends c  {
  public int m1() throws Ex1 {
    return 1;
  }
}