UTF8: JDWP: Error messages need to go from UTF8 -> Platform encoding

In various places in the JDWP backend, error messages are constructed and
just fprintf'd, these byte arrays are likely UTF-8, and need to be converted
to platform encoding.

Likely not a big issue, until some non English characters show up in classnames
and also need to be printed in errors. Also not many errors in the backend
either.

Also see similar bug on hprof 5057370.

Also, the log output... written to a logfile, needs to be platform encoding.
###@###.### 10/11/04 22:51 GMT