XlintWarn.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
 * @test
 * @bug 6999067 7010194
 * @summary cast for invokeExact call gets redundant cast to <type> warnings
 * @author mcimadamore
 *
 * @compile -Werror -Xlint:cast XlintWarn.java
 */

import java.lang.invoke.*;

class XlintWarn {
    void test(MethodHandle mh) throws Throwable {
        int i1 = (int)mh.invokeExact();
        int i2 = (int)mh.invoke();
        int i3 = (int)mh.invokeWithArguments();
    }

    void test2(MethodHandle mh) throws Throwable {
        int i1 = (int)(mh.invokeExact());
        int i2 = (int)(mh.invoke());
        int i3 = (int)(mh.invokeWithArguments());
    }

    void test3(MethodHandle mh) throws Throwable {
        int i1 = (int)((mh.invokeExact()));
        int i2 = (int)((mh.invoke()));
        int i3 = (int)((mh.invokeWithArguments()));
    }
}