[logback-user] Logging messages from org.apache.xml.security.utils.DigesterOutputStream.class

Swapna Gupta sgupta at callidussoftware.com
Thu May 26 22:51:08 CEST 2011

I am thoroughly confused by the different logging facades. I am trying to get debug messages from org.apache.xml.security.utils.DigesterOutputStream.class which is being called by opensaml apis. OpenSaml uses SLF4J.  I am not sure what needs to be in my classpath and what shouldn't be there. I added the logback classic and logback core and jcl-over-slf4j. I don't see any messages. If I put following line in my code:

org.apache.commons.logging.Log log = LogFactory.getLog(org.apache.xml.security.utils.DigesterOutputStream.class);

I find that the log object contains a logger which is an instance of org.slf4j.helpers.NOPLogger(NOP).

Can you please help me to get the set up right?


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