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 }