Hello Mojang,
My son found this bug :
In options ... Controls ... you could put "ESCAPE" key everywhere. Example if you put on "Pick Block"
When playing solo and you closing a chest, one in two chance that the game crashes.
For fix it, blocked the Escape key. 😉
See you in Paris for MINECON 2012 !
Bye
Edit :
Step 1 : put "ESCAPE" for "Pick Block"
Step 2 : open a chest
Step 3 : move the mouse over an item in his inventory
Step 4 : do ESCAPE
Linked issues
Attachments
Comments 9

I can't reproduce this at all, but my Java is fully up-to-date so that might explain it.
Ok Thx, tonight, I will upgrate my java and will test.
New test, same problem with Java updated.
You could test with the map I uploaded, please ?
This map was created this night with 1.4.5.
I think I found how to crash all the time!
Step 1 : put "ESCAPE" for "Pick Block"
Step 2 : open a chest
Step 3 : move the mouse over an item in his inventory
Step 4 : do ESCAPE
Bingo, confirmed that here as described on my own map, it doesn't seem to be map specific.

Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Cannot confirm with 1.4.6
Included crash to MC-3619.
Out of curiosity, does this still occur if you update your java? Your version is pretty outdated.