code: protected boolean hasDescriptionProperty(final String relPath) {
  
          try {
              final Node descNode = getDescriptionNodeOrNull();
              if (descNode == null) {
                  return false;
              }
              return descNode.hasProperty(relPath);
          } catch (final RepositoryException e) {
              throw new RepositoryRuntimeException(e);
          }
      }
docs: Check of the property exists on the description of this binary.
  
  @param relPath - path to the property
  @return true if property exists.