1 /* 2 * Copyright (c) 2019, Red Hat, Inc 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 package fib; 24 public class FibJNI { 25 26 static { 27 // Native lib used for debug symbols stripping 28 System.loadLibrary("Fib"); 29 } 30 31 private final int num; 32 private final long expected; 33 34 public FibJNI(int num, long expected) { 35 this.num = num; 36 this.expected = expected; 37 } 38 39 public void callNative() { 40 callJNI(this, num); 41 } 42 43 // Called from JNI library libFib 44 private void callback(long val) { 45 System.out.println("Debug: result was: " + val); 46 if (val != expected) { 47 throw new RuntimeException("Expected " + expected + " but got: " +val); 48 } 49 } 50 51 public static native void callJNI(Object target, int num); 52 53 public static void main(String[] args) { 54 if (args.length != 2) { 55 System.err.println("Usage: " + FibJNI.class.getName() + " <input> <expectedResult>"); 56 } 57 int input = Integer.parseInt(args[0]); 58 long expected = Long.parseLong(args[1]); 59 FibJNI fib = new FibJNI(input, expected); 60 fib.callNative(); 61 System.out.println("DEBUG: Sanity check for " + FibJNI.class.getSimpleName() + " passed."); 62 } 63 }