@Override
  public void getElements(final int from, final Object[] a, final int offset, final int length) {
    ObjectArrays.ensureOffsetLength(a, offset, length);
    System.arraycopy(this.a, from, a, offset, length);
  }
Copies element of this type-specific list into the given array using optimized system calls.

@param from the start index (inclusive).
@param a the destination array.
@param offset the offset into the destination array where to store the first element copied.
@param length the number of elements to be copied.
geode-core/src/main/java/org/apache/geode/internal/cache/IdentityArrayList.java