Assign class classloader to current thread classloader (if not null) for groovy shell and handle resetting it,, use log4j2 logging, patch update groovy-all to 3.0.21 Use try-with-resources Suppress CVE-2022-41852/ and add preliminary fix in SourcePath dependencies: eclipse-jgit 6.7.0.202309050840-r Class loader issue fix, Thanks for the report to Max Philipp Wriedt. Remove xerces dependency as package org.xml.sax conflicts with default java 11 (9) system module package dependencies: eclipse-jgit 5.13.0.202109080827, velocity 2.3, groovy-all 3.0.7, xerces 2.12.1, xmlunit-core 2.8.3 - update to groovy 3.0.4 (requires Java 8) - update to velocity 2.0 - fix junit 5 - remove log4j.properties