cdm/src/main/java/ucar/ma2/ArrayLong.java
static ArrayLong factory(Index index, boolean isUnsigned) {
    return ArrayLong.factory(index, isUnsigned, null);
  }
static ArrayLong factory(Index index, boolean isUnsigned) {
    return ArrayLong.factory(index, isUnsigned, null);
  }
package private. use Array.factory()