private void endPdxSerializer() {
    Declarable d = createDeclarable();
    if (!(d instanceof PdxSerializer)) {
      throw new CacheXmlException(
          String.format("A %s is not an instance of a PdxSerializer.",
              d.getClass().getName()));
    }
    PdxSerializer serializer = (PdxSerializer) d;
    cache.setPdxSerializer(serializer);
  }
Add a marker string to look for when in endPartitionProperties

@param localOrGlobal either the string LOCAL_PROPERTIES or GLOBAL_PROPERTIES
geode-core/src/main/java/org/apache/geode/internal/cache/xmlcache/CacheXmlParser.java