src/main/java/org/nustaq/serialization/FSTClazzNameRegistry.java
public void registerClass(Class c,FSTConfiguration conf) {
        if ( getIdFromClazz(c) != Integer.MIN_VALUE ) {
            return;
        }
        registerClassNoLookup(c,null,conf);
    }
public void registerClass(Class c,FSTConfiguration conf) {
        if ( getIdFromClazz(c) != Integer.MIN_VALUE ) {
            return;
        }
        registerClassNoLookup(c,null,conf);
    }
public void registerClass ( Class c , FSTConfiguration conf ) { if ( getIdFromClazz ( c ) != Integer . MIN_VALUE ) { return ; } registerClassNoLookup ( c , null , conf ) ; }
for read => always increase handle (wg. replaceObject)
for read = > always increase handle ( wg . replaceObject )