static <T> FieldSetter<T> getFieldSetter(Class<T> clazz, String fieldName) {
    try {
      Field field = clazz.getDeclaredField(fieldName);
      return new FieldSetter<>(field);
    } catch (NoSuchFieldException e) {
      throw new AssertionError(e); // programmer error
    }
  }

  // Secret sauce for setting final fields; don't make it public.
  static final class FieldSetter<T> {

            | Error atomicReferenceFieldUpdaterFailure) {
          // Some Android 5.0.x Samsung devices have bugs in JDK reflection APIs that cause
          // getDeclaredField to throw a NoSuchFieldException when the field is definitely there.
          // For these users fallback to a suboptimal implementation, based on synchronized. This
          // will be a definite performance hit to those users.

    }

    /**
     * Test field types match expected types
     */
    @Test
    @DisplayName("Test field types are correct")
    public void testFieldTypes() throws NoSuchFieldException {
        // Verify field types
        assertEquals(byte.class, ServerData.class.getDeclaredField("sflags").getType());
        assertEquals(int.class, ServerData.class.getDeclaredField("sflags2").getType());