This parameter specifies the directory under which the Software Developer's Kit (SDK) for Java™, to be used for running DB2® administration server functions, is installed.
Environment variables used by the Java interpreter are computed from the value of this parameter.
On Windows operating systems, Java files (if needed) are placed under the sqllib directory (in java\jdk) during DB2 installation. The jdk_path configuration parameter is then set to sqllib\java\jdk. Java is never actually installed by DB2 on Windows platforms; the files are merely placed under the sqllib directory, and this is done regardless of whether or not Java is already installed.
This parameter can only be updated from a Version 8 command line processor (CLP).