@Test
  public void toByteArray_empty_returnsEmptyBytes() {
    byte[][] array = new byte[0][0];
    assertThat(toByteArray(array)).isEqualTo(new Byte[0][0]);
  }
Unit tests for {@link ArrayUtils}.

@since GemFire 7.x
geode-core/src/test/java/org/apache/geode/internal/util/ArrayUtilsTest.java