Overview: mlockall_agent is a simple JVMTI agent that runs a small piece of code at JVM start time. This code does the following: - Raises the current process's resource limit for locked memory - Calls mlockall() to lock all current and future allocations in wired memory - Sets the current userid and group list to match a target user - Continues on JVM initialization Usage: Simply add the following JVM argument to the Java command line: -agentpath:/path/to/libmlockall_agent.so=user=target_user_for_setuid Then, run the Java process as root. If the Java command line is obscured within a script, you can also use the JAVA_TOOL_OPTIONS environment variable for the same effect.