Spring STS 4 seems to launch a separate process called PropertiesLauncher. I guess it's for supporting the Language Server Protocol.

Currently there is no way to pass VM arguments for this process, for example to customize garbage collector and memory settings.

Please provide a way to customize these options.

Reason:
I notice from time to time a slow down which seems to be related to increased garbage collection activity because of a full old generation in the heap. The max heap seems to be limited to 1G.