ExtendCovariant1.java revision 553:9d9f26857129 
1133359Sobrien/*
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4133359Sobrien *
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6133359Sobrien * under the terms of the GNU General Public License version 2 only, as
7133359Sobrien * published by the Free Software Foundation.
8133359Sobrien *
9133359Sobrien * This code is distributed in the hope that it will be useful, but WITHOUT
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11133359Sobrien * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12133359Sobrien * version 2 for more details (a copy is included in the LICENSE file that
13133359Sobrien * accompanied this code).
14226048Sobrien *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 */
23
24/*
25 * @test
26 * @bug 5009712
27 * @summary 1.4 javac should not accept the Covariant Return Type
28 * @author gafter
29 *
30 * @compile -source 1.4 ExtendCovariant1.java
31 */
32
33/**
34 * java.io.PrintStream java.io.PrintStream.append(char)
35 *
36 * overrides
37 *
38 * java.lang.Appendable java.lang.Appendable.append(char)
39 *
40 * Yet javac should allow extending PrintStream, as long as the user
41 * doesn't directly override a covariant method in -source 1.4.
42 **/
43public class ExtendCovariant1 extends java.io.PrintStream {
44    ExtendCovariant1() throws java.io.IOException {
45        super("");
46    }
47}
48