It's this kind of scenario that this woke-nizing the mainframe is supposed to actually help with. That is, release-based automated builds, and to automatically, easily maintain different binaries/versions.
Your customers with newer software don't need to be 'punished with' binaries made for/from older Java, when newer Java versions might offer some sort of instruction-level enhancements. Don't know if that makes sense in the way I'm hoping it will... let me know. - KB ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Thursday, October 21st, 2021 at 6:42 PM, Ed Jaffe <edja...@phoenixsoftware.com> wrote: > On 10/21/2021 5:39 AM, Ron Wells wrote: > > > Like reinventing a wheel and all they do is add complexity , as example > > Java..another moving target, write something for it, change rel. BANG does > > not work. Like Windows, if IBM did this, they would have been out of the > > Boz decades ago. > > We love Java on IBM Z and we have not experienced the incompatibility > > issues you're describing. We started back in 2013 on Java 6 and that > > same code is still working perfectly today under Java 8. We target Java > > 6 in the compile to ensure backward compatibility with the oldest Java > > available for the oldest z/OS operating systems supported by the oldest > > supported releases of our software products (at the moment that is z/OS > > 2.1). We find that approach easier than setting the target individually > > for every release, though that could be done if we needed some feature > > not available in Java 6. > > Of course, it's always possible there could be changes required when > > z/OS Java 11 finally gets released.. hopefully later this year. If we > > experience any incompatibilities, I will update this thread with our > > findings. > > FWIW, we also have some old COBOL programs from an acquired product that > > needed some minor changes to allow them to compile under COBOL 6.x. > > --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > Phoenix Software International > > Edward E. 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