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Update native encoding detection for JEP400 #1393

Merged
merged 3 commits into from Nov 3, 2021
Merged

Update native encoding detection for JEP400 #1393

merged 3 commits into from Nov 3, 2021

Commits on Oct 29, 2021

  1. Check if system property native.encoding is set and use that to deter… 

    …mine default charset

JNA used the defaultCharset to determine which encoding to use when
converting strings to native char*. The defaultCharset is set from
the system property file.encoding. Up to JDK 17 its value defaulted
to the system default encoding. From JDK 18 onwards its default value
changed to UTF-8.
JDK 18+ exposes the native encoding as the new system property
native.encoding, prior versions don't have that property and will
report NULL for it.
The algorithm is simple: If native.encoding is set, it will be used
else the original implementation of Charset#defaultCharset is used.
    @matthiasblaesing
    matthiasblaesing committed Oct 29, 2021
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  2. Update java version for CI

    @matthiasblaesing
    matthiasblaesing committed Oct 29, 2021
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  3. Make javac source and target level for contrib jars configurable

    @matthiasblaesing
    matthiasblaesing committed Oct 29, 2021
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