1 /* 2 * Copyright (c) 2019, 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 <jni.h> 25 26 jmethodID mid; 27 jclass cls; 28 static int count = 0; 29 30 JNIEXPORT jint JNICALL 31 Java_RedefineDeleteJmethod_jniCallDeleteMe(JNIEnv* env, jobject obj) { 32 33 if (count == 0) { 34 count++; 35 cls = (*env)->FindClass(env, "B"); 36 if (NULL == cls) { 37 (*env)->FatalError(env, "could not find class"); 38 } 39 40 mid = (*env)->GetStaticMethodID(env, cls, "deleteMe", "()I"); 41 if (NULL == mid) { 42 (*env)->FatalError(env, "could not find method"); 43 } 44 } 45 46 return (*env)->CallStaticIntMethod(env, cls, mid); 47 }