On some jenkins builds, the Integration Test "
MPMD-268-deprecated-rules" sometimes fails. The verification expects in the log a line
[WARNING] ... some warning from pmd
But instead we get e.g.
Jul 26, 2019 8:14:59 PM net.sourceforge.pmd.RuleSetFactory parseRuleReferenceNode
WARNING: ... some warning from pmd
This is probably due to the possibility, that the java.util.Logger instance might be garbage collected, so that the logging configuration and the jul-to-slf4j-bridge is gone.