Additional Java folder to be cleaned?

Think I've found an additional Java temp folder for cleaning which isn't cleaned at present. Found it by accident when trying a Java demo and checking where it went. The temp folder is at:

C:\Documents and Settings\USER\Application Data\Sun\Java\Deployment\tmp\

Is this safe to clean and can it be added to CCleaners Java cleaning???

Heres a winapp2 entry for it if anyones interested, assuming its safe to be cleaned (in which case it'll hopefully soon be added to CCleaner):

[*Sun Java Temp]LangSecRef=3022Detect=HKLM\SOFTWARE\JavaSoft\Java Plug-inDefault=TrueFileKey1=%userprofile%\Application Data\Sun\Java\Deployment\tmp|*.*|RECURSE