this information is written to stdout. But here I have other very important information.
I found this information:
Per default FOP uses the SimpleLog which logs to System.out. If you want to do logging
using a logging framework (such as LogKit, Log4J or JDK 1.4 Logging) you can set a
different Logger implementation on the Driver object. Here’s an example how you would use
LogKit:
Hierarchy hierarchy = Hierarchy.getDefaultHierarchy();
PatternFormatter formatter = new PatternFormatter(
“[%{priority}]: %{message}\n%{throwable}” );
LogTarget target = null;
target = new StreamTarget(System.out, formatter);
hierarchy.setDefaultLogTarget(target);
log = hierarchy.getLoggerFor(“fop”);
log.setPriority(Priority.INFO);
driver.setLogger(new org.apache.avalon.framework.logger.LogKitLogger(log));
The LogKitLogger class implements the Logger interface so all logging calls are being
redirected to LogKit. More information on Jakarta LogKit can be found here.
Similar implementations exist for Log4J (org.apache.avalon.framework.logger.Log4JLogger)
and JDK 1.4 logging (org.apache.avalon.framework.logger.Jdk14Logger).
If you want FOP to be totally silent you can also set an
org.apache.avalon.framework.logger.NullLogger instance.
