1 /* 2 * Copyright (c) 2017, 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 #include "jni_util.h" 29 30 static jint count = 0; 31 static jclass test_class; 32 static jint current_jni_version = JNI_VERSION_10; 33 34 JNIEXPORT jint JNICALL 35 JNI_OnLoad(JavaVM *vm, void *reserved) { 36 JNIEnv *env; 37 jclass cl; 38 39 (*vm)->GetEnv(vm, (void **) &env, current_jni_version); 40 41 cl = (*env)->FindClass(env, "NativeLibraryTest"); 42 test_class = (*env)->NewGlobalRef(env, cl); 43 44 // increment the count when JNI_OnLoad is called 45 count++; 46 47 return current_jni_version; 48 } 49 50 JNIEXPORT void JNICALL 51 JNI_OnUnload(JavaVM *vm, void *reserved) { 52 JNIEnv *env; 53 jmethodID mid; 54 jclass cl; 55 56 (*vm)->GetEnv(vm, (void **) &env, current_jni_version); 57 mid = (*env)->GetStaticMethodID(env, test_class, "nativeLibraryUnloaded", "()V"); 58 (*env)->CallStaticVoidMethod(env, test_class, mid); 59 if ((*env)->ExceptionCheck(env)) { 60 (*env)->ExceptionDescribe(env); 61 (*env)->FatalError(env, "Exception thrown"); 62 } 63 64 cl = (*env)->FindClass(env, "p/Test"); 65 if (cl != NULL) { 66 (*env)->FatalError(env, "p/Test class should not be found"); 67 } 68 } 69 70 JNIEXPORT jint JNICALL 71 Java_p_Test_count 72 (JNIEnv *env, jclass cls) { 73 return count; 74 }