/*
* Copyright ( c ) 2021 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
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* 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 .
*
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*/
/* @test
* @ summary Test MethodHandle : : invokeExact and MethodHandle : : invoke throws
* UnsupportedOperationException when called via Method : : invoke
* @ run testng test . java . lang . invoke . MethodHandleInvokeUOE
*/
package test.java.lang.invoke;
import org.testng.*;
import org.testng.annotations.*;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import static java.lang.invoke.MethodType.*;
public class MethodHandleInvokeUOE {
@Test
public void testInvokeExact() throws Throwable {
Class <?> clz = MethodHandle.class ;
String mname = "invokeExact" ;
Method m = clz.getDeclaredMethod(mname, Object[].class );
MethodHandle mh = MethodHandles.lookup().findVirtual(clz, mname, methodType(Object.class , Object[].class ));
try {
m.invoke(mh, new Object[1 ]);
} catch (InvocationTargetException e) {
if (!(e.getCause() instanceof UnsupportedOperationException)) {
throw new RuntimeException("expected UnsupportedOperationException but got: "
+ e.getCause().getClass().getName(), e);
}
}
}
@Test
public void testInvoke() throws Throwable {
Class <?> clz = MethodHandle.class ;
String mname = "invoke" ;
Method m = clz.getDeclaredMethod(mname, Object[].class );
MethodHandle mh = MethodHandles.lookup().findVirtual(clz, mname, methodType(Object.class , Object[].class ));
try {
m.invoke(mh, new Object[1 ]);
} catch (InvocationTargetException e) {
if (!(e.getCause() instanceof UnsupportedOperationException)) {
throw new RuntimeException("expected UnsupportedOperationException but got: "
+ e.getCause().getClass().getName(), e);
}
}
}
}
Messung V0.5 in Prozent C=93 H=91 G=91
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-11)
¤
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