1 /* 2 * Copyright (c) 2018, 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 /** 25 * Utility class for invoking methods and constructors and accessing fields 26 * via JNI. 27 */ 28 public class NestmatesJNI { 29 30 static { 31 System.loadLibrary("NestmatesJNI"); 32 } 33 callVoidVoid(Object target, String definingClassName, String methodName, boolean virtual)34 public static native void callVoidVoid(Object target, String definingClassName, String methodName, boolean virtual); 35 callStringVoid(Object target, String definingClassName, String methodName, boolean virtual)36 public static native String callStringVoid(Object target, String definingClassName, String methodName, boolean virtual); 37 callStaticVoidVoid(String definingClassName, String methodName)38 public static native void callStaticVoidVoid(String definingClassName, String methodName); 39 newInstance(String definingClassName, String sig, Object outerThis)40 public static Object newInstance(String definingClassName, String sig, Object outerThis) { 41 return newInstance0(definingClassName, "<init>", sig, outerThis); 42 } 43 newInstance0(String definingClassName, String method_name, String sig, Object outerThis)44 private static native Object newInstance0(String definingClassName, String method_name, String sig, Object outerThis); 45 getIntField(Object target, String definingClassName, String fieldName)46 public static native int getIntField(Object target, String definingClassName, String fieldName); 47 setIntField(Object target, String definingClassName, String fieldName, int newVal)48 public static native void setIntField(Object target, String definingClassName, String fieldName, int newVal); 49 getStaticIntField(String definingClassName, String fieldName)50 public static native int getStaticIntField(String definingClassName, String fieldName); 51 setStaticIntField(String definingClassName, String fieldName, int newVal)52 public static native void setStaticIntField(String definingClassName, String fieldName, int newVal); 53 54 } 55