У меня ошибка по теме,
Error: Could not find or load main class failed\jee-2018-12\eclipse\configuration\org.eclipse.osgi\405\0\.cp\lib\javaagent-shaded.jar
Caused by: java.lang.ClassNotFoundException: failed\jee-2018-12\eclipse\configuration\org.eclipse.osgi\405\0\.cp\lib\javaagent-shaded.jar