src/main/java/org/nustaq/serialization/FSTClazzLineageInfo.java
public static int getSpecificity(final Class<?> clazz) {
    if (clazz == null) return 0;
    final LineageInfo lineageInfo = FSTClazzLineageInfo.getLineageInfo(clazz);
    return lineageInfo == null ? 0 : lineageInfo.specificity;
  }
public static int getSpecificity(final Class<?> clazz) {
    if (clazz == null) return 0;
    final LineageInfo lineageInfo = FSTClazzLineageInfo.getLineageInfo(clazz);
    return lineageInfo == null ? 0 : lineageInfo.specificity;
  }
Returns the specificity of the specified class as defined above.