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To generate a list of jars to skip for a given install, a command such as this , run from idp.home, will generate output you can paste:
ls webapp/unzip -l /opt/shibboleth-idp/war/idp.war | grep WEB-INF/lib/. | sed 's/^.*WEB-INF\/lib\///' | awk '{print $1",\\"}'
The list of comma-separated jarfiles is added into the file CATALINA_BASE/conf/catalina.properties to the property value named tomcat.util.scan.StandardJarScanFilter.jarsToSkip
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