Konrad Windszus created MPOM-264:
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Summary: Parameterize maven-compiler-plugin with "release" when
running on JDK 9+
Key: MPOM-264
URL: https://issues.apache.org/jira/browse/MPOM-264
Project: Maven POMs
Issue Type: Improvement
Components: asf
Affects Versions: ASF-23
Reporter: Konrad Windszus
Instead of using {{source}} and {{target}} the new parameter {{release}}
(https://maven.apache.org/plugins/maven-compiler-plugin/compile-mojo.html#release)
should be used with Java 9+ as that also checks whether the used API is
provided in the target Java release
(https://docs.oracle.com/javase/9/tools/javac.htm#GUID-AEEC9F07-CB49-4E96-8BC7-BCC2C7F725C9__GUID-D343F6B4-3FDD-43A8-AD24-43DD70214471).
To be able to support both compilation with Java < 9 and above a profile should
be used which either configured {{source}} and {{target}} or {{release}}.
You have to observe though that the parameter values are different though, as
the former supports 1.6, 1.7 and 1.8 the latter only supports 6, 7 and 8.
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