docs: @SuppressFBWarnings("NP_BOOLEAN_RETURN_NULL")
      static Boolean isObjectLayoutCompressedOopsOrNull() {
          if (!UNSAFE_AVAILABLE) {
              return null;
          }
  
          Integer referenceSize = ReferenceSizeEstimator.getReferenceSizeOrNull();
          if (referenceSize == null) {
              return null;
          }
  
          // when reference size does not equal address size then it's safe to assume references are compressed
          return referenceSize != UNSAFE.addressSize();
      }