RFR (S) 8232168: Fix non wide char canonicalization on Windows

[Langer, Christoph]

Thanks, Calvin for the review.

Alan, unless you have severe objections I'd push this tomorrow after running another night of tests with this patch and run doing jdk-submit. Is that ok with you?

Thanks
Christoph

> -----Original Message-----
> From: Calvin Cheung <calvin.cheung at oracle.com>
> Sent: Mittwoch, 23. Oktober 2019 20:21
> To: Langer, Christoph <christoph.langer at sap.com>; Alan Bateman
> <Alan.Bateman at oracle.com>; hotspot-runtime-dev at openjdk.java.net; Java
> Core Libs <core-libs-dev at openjdk.java.net>
> Subject: Re: RFR (S) 8232168: Fix non wide char canonicalization on Windows
> 
> Hi Christoph,
> 
> The changes look good.
> 
> I agree that other mentioned items (the JPLIS agent usage and moving the
> canonicalize function into hotspot) could be done in separate RFEs.
> 
> thanks,
> 
> Calvin
> 
> On 10/23/19 5:57 AM, Langer, Christoph wrote:
> > Hi,
> >
> > I've picked up Ralf's patch and cleaned it up a little bit. But apart from some
> comment changes it should be the same as his original version. So, what
> happens is that the windows 'canonicalize" function will only delegate to
> 'wcanonicalize' from now on.  Furthermore,  'canonicalizeWithPrefix' along
> with some auxiliary stuff could be removed completely.
> >
> > Can I please get a review for this, as I'm planning on doing further cleanup
> around canonicalization.
> >
> > New webrev: http://cr.openjdk.java.net/~clanger/webrevs/8232168.0/
> >
> > Thanks
> > Christoph
> >
> >> -----Original Message-----
> >> From: hotspot-runtime-dev <hotspot-runtime-dev-
> >> bounces at openjdk.java.net> On Behalf Of Alan Bateman
> >> Sent: Freitag, 18. Oktober 2019 12:41
> >> To: Schmelter, Ralf <ralf.schmelter at sap.com>; David Holmes
> >> <david.holmes at oracle.com>; hotspot-runtime-dev at openjdk.java.net;
> Java
> >> Core Libs <core-libs-dev at openjdk.java.net>
> >> Subject: Re: RFR (S) 8232168: Fix non wide char canonicalization on
> Windows
> >>
> >> On 16/10/2019 09:28, Schmelter, Ralf wrote:
> >>> Hi David,
> >>>
> >>> the canonicalize() method is never used by java.io or any Java code.
> >> Currently it is used by the hotspot in classloader.cpp (which I use in the
> test)
> >> and in libinstrument in InvocationAdapter.c. There is no way to test it in
> core-
> >> libs. One can argue if the canonicalize method is in the right file, but that
> >> should be a separate discussion.
> >> I plan to review this, I just haven't had time yet. You are right that
> >> there is technical debt here, include dependency in the JPLIS agent
> >> which crept in when java.lang.instrument was updated to support
> >> augmenting of the boot class path.
> >>
> >> -Alan