@Override
  public void endObjectField(String fieldName) {
    if (logger.isTraceEnabled()) {
      logger.trace("endObjectField fieldName: {}", fieldName);
    }
    m_pdxInstance = m_pdxInstanceFactory.create();
  }
This class is intermediate class to create PdxInstance.
geode-core/src/main/java/org/apache/geode/pdx/internal/json/PdxInstanceHelper.java