question: @ Nullable public static Class < ? > classForName ( @ Nullable String cls , @ Nullable Class < ? > dflt , boolean includePrimitiveTypes ) { Class < ? > clazz ; if ( cls == null ) clazz = dflt ; else if ( ! includePrimitiveTypes || cls . length ( ) > 7 || ( clazz = primitiveMap . get ( cls ) ) == null ) { try { clazz = Class . forName ( cls ) ; } catch ( ClassNotFoundException ignore ) { clazz = dflt ; } } return clazz ; }
target:  Gets class for the given name if it can be loaded or default given class.