1 /* 2 * Copyright (c) 2016, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #include "util.h" 27 #include "inStream.h" 28 #include "outStream.h" 29 #include "ModuleReferenceImpl.h" 30 31 32 static jclass jlM(JNIEnv *env) { 33 return findClass(env, "Ljava/lang/Module;"); 34 } 35 36 static jboolean 37 getName(PacketInputStream *in, PacketOutputStream *out) 38 { 39 static jmethodID method = NULL; 40 JNIEnv *env = getEnv(); 41 char *name = NULL; 42 jstring namestr; 43 jobject module; 44 45 if (method == NULL) { 46 method = getMethod(env, jlM(env), "getName", "()Ljava/lang/String;"); 47 } 48 module = inStream_readModuleRef(getEnv(), in); 49 if (inStream_error(in)) { 50 return JNI_TRUE; 51 } 52 namestr = (jstring)JNI_FUNC_PTR(env, CallObjectMethod) (env, module, method); 53 if (namestr != NULL) { 54 name = (char*)JNI_FUNC_PTR(env, GetStringUTFChars)(env, namestr, NULL); 55 } else { 56 // The JDWP converts null into an empty string 57 } 58 (void)outStream_writeString(out, name); 59 if (name != NULL) { 60 JNI_FUNC_PTR(env, ReleaseStringUTFChars)(env, namestr, name); 61 } 62 return JNI_TRUE; 63 } 64 65 static jboolean 66 getClassLoader(PacketInputStream *in, PacketOutputStream *out) 67 { 68 static jmethodID method = NULL; 69 JNIEnv *env = getEnv(); 70 jobject loader; 71 jobject module; 72 73 if (method == NULL) { 74 method = getMethod(env, jlM(env), "getClassLoader", "()Ljava/lang/ClassLoader;"); 75 } 76 module = inStream_readModuleRef(env, in); 77 if (inStream_error(in)) { 78 return JNI_TRUE; 79 } 80 loader = JNI_FUNC_PTR(env, CallObjectMethod) (env, module, method); 81 82 (void)outStream_writeObjectRef(env, out, loader); 83 return JNI_TRUE; 84 } 85 86 87 void *ModuleReference_Cmds[] = { (void *)3 88 ,(void *)getName 89 ,(void *)getClassLoader 90 };