As reported on StackOverflow in http://stackoverflow.com/questions/20623950/open-an-xls-file-with-hssfworkbook-crash-my-app-in-run-time : PropertySetFactory has an import to java.rmi.UnexpectedException, which is used to throw on a broken setup. This is an odd exception to use, as we don't use RMI, and it can cause issues on Android. It should be swapped for something more standard.
Fixed in r1551832, now uses java.lang.IllegalStateException instead.
*** Bug 55900 has been marked as a duplicate of this bug. ***