private static void warnUnsupportedCharset(String csn) {
if (warnUnsupportedCharset) {
// Use sun.misc.MessageUtils rather than the Logging API or
// System.err since this method may be called during VM
// initialization before either is available.
MessageUtils.err(
"WARNING: Default charset " + csn + " not supported, using ISO-8859-1 instead");
warnUnsupportedCharset = false;
}
}
static byte[] encode(char[] ca, int off, int len) {
String csn = Charset.defaultCharset().name();
try {
// use charset name encode() variant which provides caching.
return encode(csn, ca, off, len);
} catch (UnsupportedEncodingException x) {
warnUnsupportedCharset(csn);
}
try {
return encode("ISO-8859-1", ca, off, len);
} catch (UnsupportedEncodingException x) {
// If this code is hit during VM initialization, MessageUtils is
// the only way we will be able to get any kind of error message.
MessageUtils.err("ISO-8859-1 charset not available: " + x.toString());
// If we can not find ISO-8859-1 (a required encoding) then things
// are seriously wrong with the installation.
System.exit(1);
return null;
}
}
static char[] decode(byte[] ba, int off, int len) {
String csn = Converters.getDefaultEncodingName();
try {
return decode(csn, ba, off, len);
} catch (UnsupportedEncodingException x) {
Converters.resetDefaultEncodingName();
warnUnsupportedCharset(csn);
}
try {
return decode("ISO-8859-1", ba, off, len);
} catch (UnsupportedEncodingException x) {
// If this code is hit during VM initialization, MessageUtils is
// the only way we will be able to get any kind of error message.
MessageUtils.err("ISO-8859-1 charset not available: " + x.toString());
// If we can not find ISO-8859-1 (a required encoding) then things
// are seriously wrong with the installation.
System.exit(1);
return null;
}
}