cdm/src/main/java/ucar/ma2/ArrayLong.java
protected void copyFrom1DJavaArray(IndexIterator iter, Object javaArray) {
    long[] ja = (long []) javaArray;
    for (long aJa : ja) iter.setLongNext(aJa);
  }
protected void copyFrom1DJavaArray(IndexIterator iter, Object javaArray) {
    long[] ja = (long []) javaArray;
    for (long aJa : ja) iter.setLongNext(aJa);
  }
copy from javaArray to storage using the iterator: used by factory( Object);