code: public Result<Float> getPolyHeight(long ref, float[] pos) {
  
          Result<Tupple2<MeshTile, Poly>> tileAndPoly = m_nav.getTileAndPolyByRef(ref);
          if (tileAndPoly.failed()) {
              return Result.of(tileAndPoly.status, tileAndPoly.message);
          }
          MeshTile tile = tileAndPoly.result.first;
          Poly poly = tileAndPoly.result.second;
  
          if (Objects.isNull(pos) || !vIsFinite2D(pos)) {
              return Result.invalidParam();
          }
  
          // We used to return success for offmesh connections, but the
          // getPolyHeight in DetourNavMesh does not do this, so special
          // case it here.
          if (poly.getType() == Poly.DT_POLYTYPE_OFFMESH_CONNECTION) {
              int i = poly.verts[0] * 3;
              float[] v0 = new float[] { tile.data.verts[i], tile.data.verts[i + 1], tile.data.verts[i + 2] };
              i = poly.verts[1] * 3;
              float[] v1 = new float[] { tile.data.verts[i], tile.data.verts[i + 1], tile.data.verts[i + 2] };
              Tupple2<Float, Float> dt = distancePtSegSqr2D(pos, v0, v1);
              return Result.success(v0[1] + (v1[1] - v0[1]) * dt.second);
          }
          Optional<Float> height = m_nav.getPolyHeight(tile, poly, pos);
          return height.isPresent() ? Result.success(height.get()) : Result.invalidParam();
      }
docs: / @returns The status flags for the query.