grib/src/main/java/ucar/nc2/grib/collection/GribCollectionMutable.java
void setIndexRaf(RandomAccessFile indexRaf) {
    this.indexRaf = indexRaf;
    if (indexRaf != null) {
      this.indexFilename = indexRaf.getLocation();
    }
  }
void setIndexRaf(RandomAccessFile indexRaf) {
    this.indexRaf = indexRaf;
    if (indexRaf != null) {
      this.indexFilename = indexRaf.getLocation();
    }
  }
public by accident, do not use

@param indexRaf the open raf of the index file