public CeActivityDto setEntityUuid(@Nullable String s) {
    validateUuid(s, "ENTITY_UUID");
    this.entityUuid = s;
    return this;
  }
@Test
  void setMainComponentUuid_accepts_null_empty_and_string_40_chars_or_less() {
    assertThatNoException().isThrownBy(() -> underTest.setEntityUuid(null));
    assertThatNoException().isThrownBy(() -> underTest.setEntityUuid(""));
    assertThatNoException().isThrownBy(() -> underTest.setEntityUuid("bar"));
    assertThatNoException().isThrownBy(() -> underTest.setEntityUuid(STR_40_CHARS));
  }