Use org.apache.log4j.Logger instead of org.apache.log4j.Category. Category has been deprecated for ~2 years and has been removed from the log4j code. Logger was introduced in log4j 1.2 so users of log4j 1.1 and log4j 1.0 need to upgrade to a newer version of log4j. . Translate task does not remove tokens when a key is not found. It logs a verbose message. . Incorrect task name with invalid "javac" task after a "presetdef. . was not printing warnings about invalid manifest elements. . got out of memory on large files (part of ). can now handle files as long as there is enough disk space available. now (alphanumerically) sorts the property list before echoing. .