69 lines
2.8 KiB
Java
69 lines
2.8 KiB
Java
/*
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* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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/*
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* @test
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* @bug 8323243
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* @summary Test that invocation of an abstract method from JNI works correctly
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* @compile AbstractMethodClass.jasm
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* @run main/othervm/native TestJNIAbstractMethod
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*/
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/**
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* We are testing invocation of an abstract method from JNI - which should
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* simply result in throwning AbstractMethodError. To invoke an abstract method
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* we must have an instance method (as abstract static methods are illegal),
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* but instantiating an abstract class is also illegal at the Java language
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* level, so we have to use a custom jasm class that contains an abstract method
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* declaration, but which is not itself declared as an abstract class.
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*/
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public class TestJNIAbstractMethod {
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// Invokes an abstract method from JNI and throws AbstractMethodError.
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private static native void invokeAbstractM(Class<?> AMclass,
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AbstractMethodClass receiver);
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static {
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System.loadLibrary("JNIAbstractMethod");
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}
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public static void main(String[] args) {
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AbstractMethodClass obj = new AbstractMethodClass();
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try {
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System.out.println("Attempting direct invocation via Java");
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obj.abstractM();
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throw new RuntimeException("Did not get AbstractMethodError from Java!");
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} catch (AbstractMethodError expected) {
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System.out.println("ok - got expected exception: " + expected);
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}
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try {
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System.out.println("Attempting direct invocation via JNI");
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invokeAbstractM(obj.getClass(), obj);
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throw new RuntimeException("Did not get AbstractMethodError from JNI!");
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} catch (AbstractMethodError expected) {
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System.out.println("ok - got expected exception: " + expected);
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}
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}
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}
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