--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javacommons/security/src/utils/javaclassinstantiator.cpp	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,90 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+
+#include "javajniutils.h"
+#include "com_nokia_mj_impl_security_midp_authorization_ClassInstantiator.h"
+
+using namespace std;
+
+// forward declarations
+void handleException(JNIEnv*, const char *);
+
+JNIEXPORT
+jobject JNICALL Java_com_nokia_mj_impl_security_midp_authorization_ClassInstantiator__1newInstance(
+    JNIEnv* env, jclass /*peer*/, jstring className, jobjectArray args)
+{
+    //It is expected that class name is formatted in Java side to
+    //format com/xxx/yyy
+
+    jboolean isCopy;
+    //Get the class name in utf8 format.
+    const char* utf8ClassName(env->GetStringUTFChars(className, &isCopy));
+
+    //Find the class
+    jclass cls = env->FindClass(utf8ClassName);
+    handleException(env,"Permission class not found");
+
+    //Object to be returned
+    jobject obj = 0;
+    if (cls != 0)
+    {
+        //Create the signature. All the arguments are expected to be Strings.
+        std::string signature = "(";
+        int argCount = env->GetArrayLength(args); //How many arguments there are
+        jvalue* jargs = new jvalue[argCount]; //Argument array for NewObjectA()
+        for (int i = 0; i < argCount; i++)
+        {
+            signature += "Ljava/lang/String;"; //Append signature
+            jobject o = env->GetObjectArrayElement(args, i); //Get the argument object
+            jargs[i].l = o; //Store it to array
+        }
+        signature += ")V"; //Append the return type
+
+        //Try to find the method id.
+        jmethodID ctor = env->GetMethodID(cls,"<init>", signature.c_str());
+        handleException(env, "No constructor found to match the supplied parameters");
+
+        if (ctor)
+        {
+            //Construct the object
+            obj = env->NewObjectA(cls, ctor, jargs);
+            handleException(env, "Error instantiating a class with the supplied parameters");
+        }
+        delete[] jargs;
+    }
+
+    //Releasing the allocated class name
+    env->ReleaseStringUTFChars(className, utf8ClassName);
+    return obj;
+}
+
+void handleException(JNIEnv* env, const char * error_msg)
+{
+    jthrowable ex = env->ExceptionOccurred();
+    if (ex)
+    {
+        env->ExceptionClear();
+        jclass newExcClass;
+        newExcClass = env->FindClass("java/lang/InstantiationException");
+        if (newExcClass != 0)
+        {
+            env->ThrowNew(newExcClass, error_msg);
+        }
+    }
+}
+