Out of bounds error

[Fixer-007]

Comment from the forum, not by me:

When running this on a 3.6GB world of mine I get:
C:\Users\Ne0nx3r0\Desktop\MC Test>java -jar mmat.jar -w world
Loaded world: world
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: -3211570
at java.util.ArrayList.set(Unknown Source)
at me.hwei.mctool.world.RegionFileBase.(RegionFileBase.java:44)
at me.hwei.mctool.world.RegionFileForRead.(RegionFileForRead.java:
17)
at me.hwei.mctool.world.WorldCache.getRegionFileForRead(WorldCache.java:
28)
at me.hwei.mctool.world.WorldStorage.getAllChunks(WorldStorage.java:88)
at me.hwei.mctool.MapAutoTrim.main(MapAutoTrim.java:37)

Any ideas?

https://bukkit.org/threads/tool-admin-minecraft-map-auto-trim-v0-4-1.37846/page-2