SAX2: Namespace Processing and NSUtils helper class

John Cowan cowan at
Mon Dec 20 02:07:38 GMT 1999

David Megginson scripsit:

> Great idea, but java.lang.String is final, so it cannot be extended
> (that supposedly allows many optimizations in the JVM).  

Specifically, Strings are immutable, and allowing an immutable class
to be extended potentially throws away the immutability.  Things like
threads and Hashtables rely on knowing what is immutable and what is not.

John Cowan                                   cowan at
       I am a member of a civilization. --David Brin

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