bug fix: memory leak in PropertyCache. Fix provided by Jeremias. There are still some thread synchronization issues to be addressed in the PropertyCache. See the following thread for details: http://mail-archives.apache.org/mod_mbox/xmlgraphics-fop-dev/200711.mbox/%3cBAY117-DAV109E36CC066889386AB917FB870@phx.gbl%3e
xmlgraphics/fop/trunk/src/java/org/apache/fop/fo/properties/PropertyCache.java
xmlgraphics/fop/trunk/status.xml