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Chris Bowditch commented on FOP-2277: ------------------------------------- You need to specify option l to road the hyphenation patterns first before you try to use them with option f or option h. That said the code could be improved to output a more helpful message > java.lang.NullPointerException > ------------------------------ > > Key: FOP-2277 > URL: https://issues.apache.org/jira/browse/FOP-2277 > Project: Fop > Issue Type: Bug > Components: fo tree > Affects Versions: 1.1 > Environment: Fedora 19, 64 bit > Reporter: Leo > > NullPointException occurs > java org.apache.fop.hyphenation.HyphenationTree > input 'f' and then 'test' > Exception in thread "main" java.lang.NullPointerException > at > org.apache.fop.hyphenation.HyphenationTree.main(HyphenationTree.java:646) -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira