1 /* 2 * Copyright (c) 2017, 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 #include <stdlib.h> 26 27 #include "jni.h" 28 29 JNIEXPORT jclass JNICALL 30 Java_java_lang_BootNativeLibrary_findClass 31 (JNIEnv *env, jclass cls, jstring name) { 32 jclass ncdfe; 33 jthrowable t; 34 35 const char* classname = (*env)->GetStringUTFChars(env, name, JNI_FALSE); 36 jclass c = (*env)->FindClass(env, classname); 37 (*env)->ReleaseStringUTFChars(env, name, classname); 38 39 if (c == NULL) { 40 // clear NCDFE 41 t = (*env)->ExceptionOccurred(env); 42 ncdfe = (*env)->FindClass(env, "java/lang/NoClassDefFoundError"); 43 if (t != NULL && (*env)->IsInstanceOf(env, t, ncdfe)) { 44 (*env)->ExceptionClear(env); 45 } 46 } 47 return c; 48 }