Java min version for master sources?

[Samuel Mehrbrodt]

Why not have a separate minumum java version for development?

We could require Java 8 for the dev/build machines, but produce java 6 
bytecode.

So for end users nothing changes (Java 6 still supported), but 
developers can make use of new java features.

Samuel

Am 21.05.19 um 11:45 schrieb Stephan Bergmann:
> On 21/05/2019 11:15, Stephan Bergmann wrote:
>> Increasing the baseline should mainly be a compatible change, as old 
>> code (e.g., extensions) should continue to work with newer Java 
>> installations.  The only drawback is that code compiled against the 
>> newer baseline (e.g., the URE jars from our builds being distributed 
>> somewhere on the Maven infrastructure?) cannot be used with older 
>> Java installations.
>
> ...and of course we need to bump the minimal supported versions at 
> jvmfwk/distributions/OpenOfficeorg/javavendors_*.xml (and bump the 
> <updated> elements there, which entails the inconveniences discussed 
> at 
> <https://gerrit.libreoffice.org/plugins/gitiles/core/+/6b8a96c421bc4766ed6c11791174689da86fa703%5E!/> 
> "Note when javavendors_*.xml <updated> should be updated").
>
> And note that we bumped the baseline to Java 6 only rather recently, 
> during the LO 6.3 timeframe, see 
> <https://gerrit.libreoffice.org/plugins/gitiles/core/+/49c21e31ce0501044a7d3602379f74c71dabb00b%5E!/> 
> "Javavendors: Set minimum version to 1.6" and 
> <https://lists.freedesktop.org/archives/libreoffice/2019-February/081991.html> 
> "Minutes of the ESC call 2019-02-07" section "bump java baseline to 
> 1.6 (Samuel, Thorsten)".
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