It is available from JBoss' repository.
I'm not sure why this worked in the past; perhaps Javassist was available through one of the other repositories, but has been subsequently removed.
|Transition||Time In Source Status||Execution Times||Last Executer||Last Execution Date|
|133d 20h 37m||1||Howard M. Lewis Ship||06/Jan/10 20:23|
|Field||Original Value||New Value|
|Status||Open [ 1 ]||Closed [ 6 ]|
|Assignee||Howard M. Lewis Ship [ hlship ]|
|Fix Version/s||5.2.0 [ 12314122 ]|
|Resolution||Fixed [ 1 ]|