question: public Span ( Span span , List < BinaryAnnotation > binaryAnnotations , List < Annotation > annotations ) { this ( binaryAnnotations , annotations ) ; this . id = span . getId ( ) ; this . traceId = span . getTraceId ( ) ; this . parentId = span . getParentId ( ) ; this . timestamp = span . getTimestamp ( ) ; this . duration = span . getDuration ( ) ; this . debug = span . getDebug ( ) ; this . name = span . getName ( ) ; }
target:  Copy construct, with ability to specify binary annotations and annotations.