RFR: 8220632: Suggest recompiling with a larger value of -Xmaxerrs/-Xmaxwarns if diagnostics were suppressed

[Liam Miller-Cushon]

On Fri, Mar 15, 2019 at 11:11 AM Ron Shapiro <ronshapiro at google.com> wrote:

> Regarding Jonathan's comments in the bug, would it be helpful/possible to
> categorize the types of diagnostics not shown? For built-in diagnostics we
> could try to group (maybe just the popular ones?) by their key?
>
> 42 symbols could not be found
> 15 errors from com.example.proc.ExampleProcessor
> etc
>
> ?
>

It's certainly possible. I think we want to strike a balance between
providing enough information to help avoid users getting stuck when
diagnostics are suppressed, but not so much information that it's
distracting (since hopefully in the common case the suppressed diagnostics
are not necessary to understand the problem).

In that specific example, Jon's suggestion to sort the non-recoverable
diagnostics first (which I intend to follow up on JDK-8220691) would avoid
suppressing the com.example.proc.ExampleProcessor diagnostics entirely.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mail.openjdk.java.net/pipermail/compiler-dev/attachments/20190315/f4e2ebf8/attachment.html>