hotspot/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.replacements.test/src/org/graalvm/compiler/replacements/test/NullBytecodeExceptionTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * 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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package org.graalvm.compiler.replacements.test;

import org.junit.Test;

import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext;
import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;
import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins;

import jdk.vm.ci.meta.ResolvedJavaMethod;

public class NullBytecodeExceptionTest extends BytecodeExceptionTest {

    private static class Exceptions {

        private static Object obj = null;

        public static void throwNull() {
            obj.toString();
        }
    }

    @Override
    protected void registerPlugin(InvocationPlugins plugins) {
        plugins.register(new InvocationPlugin() {
            @Override
            public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver) {
                return throwBytecodeException(b, NullPointerException.class);
            }
        }, Exceptions.class, "throwNull");
    }

    public static void nullSnippet() {
        Exceptions.throwNull();
    }

    @Test
    public void testNullPointerException() {
        test("nullSnippet");
    }
}