On 09/04/18 14:20, Christopher Schultz wrote:
> Mark,
> On 4/8/18 6:39 PM, Mark Thomas wrote:
>> On 08/04/2018 21:29, Christopher Schultz wrote:
>> <snip/>
>>> Does Tomcat do its own UTF-8 decoding because the JVM doesn't have a
>>> facility to convert from ByteBuffer to CharBuffer? That seems like
>>> something the JVM really should be providing...
>> No. It does it because the JRE UTF-8 decoder is buggy. Some bugs were
>> fixed in Java 8 and the rest in Java 9 so we need this decoder until
>> Java 9 is the minimum.
> Gotcha. Are there any known remaining bugs in the Java 9 implementation?

Not that I am aware of.

> If not, should we go ahead and use the JVM-provided UTF-8 decoder when
> we detect a suitable version of Java? Or is it simply not worth it?

We could. From memory there were some performance issues as well but
that would need to be retested to see if they still apply.

> Sadly, the OpenJDK license is GPL, so we can't simply use their code in
> Tomcat. :(

But the Harmony implementation is ALv2 so we just used that (and fixed
the additional bugs). :)


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