Re: Problems with Character

[Patrik Reali]

From: "Eric Blake" <address@hidden>
> I think the latest version of both files in Classpath should work.
> Could it possibly be a VM error in adding two chars, and casting the
> result back to a char?  The data is encoded as signed offsets from the
> current character, but stored as unsigned chars in the String constants;
> so if your VM does the math wrong, you may be getting a weird index.
> Another possibility - is your VM correctly handling reading in the UTF
> string from the constant pool and converting it to char[]?
>
> Can you do some more detective work? What do you get for
> Character.readChar('a') and Character.readChar('A')? If I'm reading
> CharData correctly, readChar('a') should be 0x1b02, so that you then
> index UPPER[54] == '\uffe0' (in other words, 'a' + -30 => 'A').
> readChar('A') should be 0xd01, so that you index LOWER[26] == ' ' (or
> 'A' + 32 => 'a').
>

I'm sorry. I did cry for the wolf too early. The error must be in my JVM.

To confirm this I just moved the whole CharData and Char into an own
class and let the tests run on another JVM using this class instead of
Character.
There's no error there.

I hope I didn't cause too much panic with this....

-Patrik