synchronized String segString(Iterable<SegmentCommitInfo> infos){
  final StringBuilder buffer=new StringBuilder();
  for (  final SegmentCommitInfo info : infos) {
    if (buffer.length() > 0) {
      buffer.append(' ');
    }
    buffer.append(segString(info));
  }
  return buffer.toString();
}

synchronized String segString ( Iterable < SegmentCommitInfo > infos ) { final StringBuilder buffer = new StringBuilder ( ) ; for ( final SegmentCommitInfo info : infos ) { if ( buffer . length ( ) > 0 ) { buffer . append ( ' ' ) ; } buffer . append ( segString ( info ) ) ; } return buffer . toString ( ) ; }
returns a string description of the specified segments , for debugging .
