If you want to enable trace log for Websphere Java MQ and JMS Calls then you need to add following properties while starting tomcat/WAS/java program
-Djava.library.path="C:\WAS_MQ_LIB" It should be the path to the directory where mq related jars are available
-DMQJMS_TRACE_LEVEL="base" – it will do max logging
-DMQJMS_TRACE_DIR="c:\LOGS" – path to the directory where log should be written to
