question: public static boolean isGwtVersionKnownAndAtLeast25 ( String directoryName ) { if ( ! directoryName . startsWith ( "gwt-" ) ) { return false ; } return SdkUtils . compareVersionStrings ( directoryName . substring ( 4 ) , "2.5.0" ) >= 0 ; }
target:  Returns if the version-containing directory name is >= GWT 2.5.