Re: Pre-processing during build

There is a mavenized pull here https://github.com/pgjdbc/pgjdbc/pull/322
which should make this experiment a bit eaiser

Dave Cramer

dave.cramer(at)credativ(dot)ca
http://www.credativ.ca

On 17 June 2015 at 14:38, Markus KARG <markus(at)headcrashing(dot)eu> wrote:

> >When I tried it in the past (for Jaybird) I ran into problems, it might
> have been an IncompatibleClassChangeError (or subclass) on classloading
> time, but I can't remember the exact details. I tried reading the JLS and
> JVM spec on this point, but I find it hard to come to a conclusion, so I
> will try a small experiment this weekend.
>
> Let's base further discussions on your weekend's test results aka hard
> facts. :-)
>
> >However that is half of your problem. The other half is that you risk
> using classes, methods or maybe even features that are not available in a
> lower Java version and that will not be detected compile time, but only at
> runtime (and not just in newly added JDBC 4.2 methods).
>
> This can most simply be detected by a "jre6 compliance" test drive with
> explicit JRE6 runtime lib in bootclasspath.
>
> -Markus
>
>
>
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