Hi,
based on my testing to build Maven Core / Running IT's with JDK 9 I
found a thing which looks weird to me...
The following integration test:
MavenITmng6127PluginExecutionConfigurationInterferenceTest
is currently running fine on JDK 7 and JDK 8 but on JDK 9 it fails...
So the test projects inside that It contain a configuration like this:
<groupId>mng-6127</groupId>
<artifactId>mng-6127-plugin</artifactId>
<version>0.1</version>
<packaging>maven-plugin</packaging>
<properties>
<maven-version>3.3.1</maven-version>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
During the run with JDk 7 / 8 the settings are just used to change the
source/target for the compilation...but they are not used while running
in JDK 9 ...So I though it's related to the usage of an older
maven-compiler-plugin (3.2) so I defined to use maven-compiler-plugin
3.6.1 and 3.7.0 but in both cases it does not help...which means the
command line keep containing:
-target 1.6 and source 1.6 instead of the expected 1.7...
Furtermore I have taken a look into the debug output which shows the
configuration of the plugin is not correctly set in contradiction to the
given things in the pom file (see above):
[DEBUG] (f) source = 1.6
..
[DEBUG] (f) target = 1.6
which looks like the properties will not correctly been used by the
plugin or there is a problem related to the setting of the properties in
the plugin...
The first thing is: Can someone please verify and confirm that this a
problem on JDK 9 and not limited to my machine and/or CI Server...
Kind regards
Karl Heinz Marbaise
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