code: protected void addOrRemoveGeneratedImport (boolean add)
      {
          final String IMPORT = "import javax.annotation.Generated;";
  
          int packageLine = -1;
          int importLine = -1;
          int lastJavaImport = -1;
          int firstNonJavaImport = -1;
          for (int ii = 0, nn = _lines.size(); ii < nn; ii++) {
              String line = _lines.get(ii);
              if (line.startsWith(IMPORT)) {
                  if (add) {
                      return; // we already got one!
                  }
                  importLine = ii;
                  break;
  
              } else if (line.startsWith("package ")) {
                  packageLine = ii;
  
              } else if (line.startsWith("import java")) {
                  lastJavaImport = ii;
  
              } else if (firstNonJavaImport == -1 && line.startsWith("import ")) {
                  firstNonJavaImport = ii;
              }
          }
  
          if (importLine != -1) {
              // we must be removing, or we'd have already exited
              _lines.remove(importLine);
  
          } else if (!add) {
              return; // it's already not there!
  
          } else {
              importLine = (lastJavaImport != -1) ? lastJavaImport + 1
                  : ((firstNonJavaImport != -1) ? firstNonJavaImport : packageLine + 1);
              _lines.add(importLine, IMPORT);
          }
  
          // the import line is always above these other lines, so they can be adjusted wholesale
          int adjustment = add ? 1 : -1;
          _nstart += adjustment;
          _nend += adjustment;
          _mstart += adjustment;
          _mend += adjustment;
      }
docs: Add or remove an import for "@Generated", if needed.