How to wrap a java.lang.Appendable into a java.io.Writer?

Question

UPDATE2: My own version of the adapter class, that only calls instanceof in the constructor and uses a (Java 1.5) delta in the flush() and cl

Answer 1

Google's Guava has a simple utility to do this: CharStreams.asWriter

The implementation is not the fastest (see), if you want the best performance, you might want to look at spf4j Streams.asWriter