How can I configure a system-wide logger factory?
I need to subclass Logger and have my subclass be used everywhere. When
I try to configure it using these options:
log4j.loggerFactory=org.foo.MyLoggerFactory
log4j.rootCategory=INFO, A
log4j.appender.A=org.foo.MyAppender
I get:
Caused by: java.lang.NullPointerException
at java.util.Hashtable.put(Hashtable.java:399)
at
org.apache.log4j.PropertyConfigurator.registryPut(PropertyConfigurator.java:903)
at
org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:813)
On the other hand, if I replace the rootCategory line with:
log4j.logger.test=INFO, A
and then I call Logger.getLogger("test"), everything works fine.
Configuring the loggerFactory using log4j.xml also fails, but silently.
It just uses the default LoggerFactory instead of mine.
What do I need to do to get log4j to use my LoggerFactory everywhere,
not just for specific named loggers?
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