Print{Writer,Stream}.append and StringWriter.append currently throw IOException.
This is inconsistent with IOException handling for the existing write/print methods in those classes. The append methods in these cases should be
overridden to omit mention of the IOException.

Writer.append(char) and Writer.append(CharSequence) are missing @throws
for the IOException.

-- iag@sfbay 2004-04-12

CharArrayWriter.append() also inappropriately throw IOException.

-- iag@sfbay 2004-04-15