Desynchronized createFontKey() and removed single use of static TRIPLETS_TYPE in fontLookup() following a suggestion by Jeremias Ingo Maas' threading issue (http://mail-archives.apache.org/mod_mbox/xmlgraphics-fop-users/200807.mbox/%3C000a01c8eb4b$42166e60$a701010a@ebp01422%3E).
xmlgraphics/fop/trunk/src/java/org/apache/fop/fonts/FontInfo.java