code: public final String getValue() {
          final StringBuilder b = new StringBuilder();
          if (getMinVersion() != null) {
              b.append(getMinVersion());
              if (getMaxVersion() != null) {
                  b.append(';');
              }
          }
          if (getMaxVersion() != null) {
              b.append(getMaxVersion());
          }
          return b.toString();
      }
docs: {@inheritDoc}