Is normal memory usage?
In my pc with 1.3.b87 it need 761M/989M
==== MapTool Information ====
MapTool Version: 1.3.b87
MapTool Home...: C:\Users\Comet\.maptool
Max mem avail..: 989M
Max mem used...: 989M
==== Java Information ====
Java Vendor.: Oracle Corporation
Java Home...: C:\Program Files (x86)\Java\jre7
Java Version: 1.7.0_65
............: Java(TM) SE Runtime Environment (build 1.7.0_65-b20)
............: Java HotSpot(TM) Client VM (build 24.65-b04, mixed mode, sharing)
This framework is currently only validated for MapTool 1.3b87 which only works on Java6.
I see you were running b87 on Java7, that will not work.
There is a harder to find new MapTool 1.3b90-recent build that I have done some preliminary tests with that were successful.
With regard to memory usage, I run Java6 and MapTool 1.3b87 with a max memory of 1200 and a stack size of 3. For a complex map with lots of graphics and tokens and vision etc., I can hit 900M Used. But usually I am in the 300M - 600M range.