private static String concatWildcardTypes(Type[] types){
  StringBuilder sb=new StringBuilder();
  int elementNum=0;
  for (  Type t : types) {
    sb.append(typeToString(t));
    if (++elementNum < types.length) {
      sb.append(" & ");
    }
  }
  return sb.toString();
}

private static String concatWildcardTypes ( Type [ ] types ) { StringBuilder sb = new StringBuilder ( ) ; int elementNum = 0 ; for ( Type t : types ) { sb . append ( typeToString ( t ) ) ; if ( ++ elementNum < types . length ) { sb . append ( " & " ) ; } } return sb . toString ( ) ; }
converts wildcardtype array into a jdiff compatible string . . this is a helper function for typetostring .
