we run version 3.6.11 and still see this from time to time:
ERROR: [withMaven] WARNING Exception parsing the logs generated by the Jenkins Maven Event Spy /home/ec2-user/workspace/org_yooture_develop@tmp/withMaven5705f0d0/maven-spy-20190520-135648-9715492809875305253764.log, ignore file. Please report a bug associated for the component 'pipeline-maven-plugin' at https://issues.jenkins-ci.orgERROR: org.xml.sax.SAXParseException; lineNumber: 18407; columnNumber: 263; XML document structures must start and end within the same entity.