private boolean isCompatible(String guacamoleVersion){
  return ALLOWED_GUACAMOLE_VERSIONS.contains(guacamoleVersion);
}

private boolean isCompatible ( String guacamoleVersion ) { return ALLOWED_GUACAMOLE_VERSIONS . contains ( guacamoleVersion ) ; }
returns whether the given version of guacamole is compatible with this version of guacamole as far as extensions are concerned .
