test/hotspot/jtreg/runtime/noClassDefFoundMsg/libNoClassDefFoundMsg.c

/*
 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
 * 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.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

#include <jni.h>

JNIEXPORT void JNICALL
Java_NoClassDefFoundMsg_callDefineClass(JNIEnv *env, jclass klass, jstring className) {
    const char *c_name = (*env)->GetStringUTFChars(env, className, NULL);
    (*env)->DefineClass(env, c_name, NULL, NULL, 0);
}

JNIEXPORT void JNICALL
Java_NoClassDefFoundMsg_callFindClass(JNIEnv *env, jclass klass, jstring className) {
    const char *c_name;
    jclass cls;
    if (className == NULL) {
        c_name = NULL;
    } else {
        c_name = (*env)->GetStringUTFChars(env, className, NULL);
    }
    cls = (*env)->FindClass(env, c_name);
}