Command-completion is slow

When typing e.g. "comm" and hitting Tab, it takes approximately 2 seconds for the command-completion to kick in and make suggestions/complete the command.

I have written about it already here: https://developer.jboss.org/message/960679#960679
Not sure what best to provide to make analysis easier. I am also Ok with debugging it myself if there maybe is a pointer in the right direction where to look into.

Regarding the questions in the forum post:

• I did not run any previous commands; it was this way from the beginning. I also deleted the ~/.forge folder to start afresh. Same issue
• I used the forge console from within eclipse and from the cmd. Both the same.
• I am using the 3.2.3 Final version

I have attached a screenshot of the jvisualvm sampler. Steps i did:
1. Type "com"
2. Start sampler
3. Type "TAB"
4. Wait for command-completion
5. Stop sampler

It took approximately ~2 seconds for the command-compeltion to respond. it seems the extensive checks like DefaultFileOperations.fileExists are a big part of it as it accumlates to ~1 seconds which sound much.