Hi, I need one suggestion from u people. I have GUI wriiten in JDK1.1.6, Linux RH4.1. Now i want to communicate with my native code(C++). shall I use JDK1.0 native method or JDK1.1.X native methods. Why I am asking this question, I have tried with JDK1.0 native interface, but it is giving lot of errors like thread dumps, monoitor dump, SIGENV. How to reslove SIGENV prob? so pls suggest which one is better ? and in JDK1.1.X JNI - what is the advantage ? Thanks in advance. ******************************************************************** Ramesh Babu A. Phone 91-44-4909208 FiLL Project, TeNet Group, <[EMAIL PROTECTED]> IIT - Madras. ********************************************************************