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 

    34     public static native void callVoidVoid(Object target, String definingClassName, String methodName, boolean virtual);

    35 

    36     public static native String callStringVoid(Object target, String definingClassName, String methodName, boolean virtual);

    37 

    38     public static native void callStaticVoidVoid(String definingClassName, String methodName);

    39 

    40     public static Object newInstance(String definingClassName, String sig, Object outerThis) {

    41         return newInstance0(definingClassName, "<init>", sig, outerThis);

    42     }

    43 

    44     private static native Object newInstance0(String definingClassName, String method_name, String sig, Object outerThis);

    45 

    46     public static native int getIntField(Object target, String definingClassName, String fieldName);

    47 

    48     public static native void setIntField(Object target, String definingClassName, String fieldName, int newVal);

    49 

    50     public static native int getStaticIntField(String definingClassName, String fieldName);

    51 

    52     public static native void setStaticIntField(String definingClassName, String fieldName, int newVal);

    53 

    54 }