/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
/*
* @test
* @bug 5009712
* @summary 1.4 javac should not accept the Covariant Return Type
* @author gafter
*
* @compile CompatibleAbstracts1.java
* @compile CompatibleAbstracts2.java
* @compile -source 1.4 CompatibleAbstracts2.java
* @compile CompatibleAbstracts3.java
* @compile/fail -source 1.4 CompatibleAbstracts3.java
* @compile CompatibleAbstracts4.java
* @compile/fail -source 1.4 CompatibleAbstracts4.java
* @compile CompatibleAbstracts5.java
* @compile/fail -source 1.4 CompatibleAbstracts5.java
*/
interface A {
A f();
}
interface B extends A {
B f();
}
interface C {
B f();
}
interface D {
D f();
}