https://github.com/vert-x3/wiki/wiki/4.0.0-Deprecations-and-breaking-changes#%EF%B8%8F-deprecate-logging-api https://github.com/eclipse-vertx/vert.x/pull/2775/files
RMB-530 use log4j native logging and not Vert.x
RMB-447 Remove log4j2.properties, log4j.properties, vertx-default-jul-logging.properties from jar
RMB-71 move rmb to log4j with proper log patterns