private boolean isMethodAlreadySearchedAndNotFound(String className, String field) {
    Set<String> fields = DefaultQuery.getPdxClasstoMethodsmap().get(className);
    if (fields != null) {
      return fields.contains(field);
    }

    return false;
  }
reads field value from a PdxInstance

@return the value of the field from PdxInstance
geode-core/src/main/java/org/apache/geode/cache/query/internal/AttributeDescriptor.java