Switch to 3.0.1;-). Then all those files will go into jboss' tmp dir as they did in 2.4.
Where can we get 3.0.1 ?
Where can I download 3.0.1 ?
JBoss 3.0.1 does not unpack webapps to the internal JBoss tmp directory, it unpack it in the System tmp directory
you can change the system tmp directory defining this environment variable before running run.bat or run.sh