JOveflow allows taking heap dump, remotely for a jmxremote connection. JMC prompt for a path in server machine for dumping the file.
However if the remote JVM is running on Windows, and JMC is running on macOS/Linux and Windows path is supplied for dumping the file
JMC fails to get heapdump file generated on the remote machine. Perhaps the Windows path is not handled in macOS/Linux JMC and vice versa.