Fop hangs (eating up cpu time) for us when running over an empty <fo:inline>. I attached a testfile which makes it reproducible for us.
Created attachment 27081 [details] Testcase triggering the hangup
You are using FOP trunk, right? If so, then this is a regression due to some refactoring in LineLM a few months ago, and apparently we do not yet have test cases for empty inlines, otherwise this would have been caught then and there. It's on my todo-list, and already rectified in my local sandbox, so expect it to be committed soon. Thanks for reporting!
Jupp, it's on trunk (nightly from today)
Should be fixed in Trunk now. See also: http://svn.apache.org/viewvc?rev=1137921&view=rev
batch transition to closed; if someone wishes to restore one of these to resolved in order to perform a verification step, then feel free to do so