1 /* 2 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 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 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 #include <stdio.h> 25 26 #include "jni.h" 27 #include "jni_util.h" 28 29 /* 30 * We will replace: 31 * java/lang/Thread.java: public static native void yield(); 32 * 33 * as it is simple and innocuous. 34 */ 35 static void myYield(JNIEnv* env, jclass cls) { 36 printf("myYield executed\n"); 37 } 38 39 40 JNIEXPORT void JNICALL 41 Java_TestRegisterNativesWarning_test 42 (JNIEnv *env, jclass cls, jclass jlThread) { 43 JNINativeMethod nativeMethods[] = { 44 { 45 (char*) "yield", // name 46 (char*) "()V", // sig 47 (void*) myYield // native method ptr 48 } 49 }; 50 (*env)->RegisterNatives(env, jlThread, nativeMethods, 1); 51 }