Nils Christian Ehmke created MCOMPILER-314:
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Summary: Release-Property can not be used with OpenJDK
Key: MCOMPILER-314
URL: https://issues.apache.org/jira/browse/MCOMPILER-314
Project: Maven Compiler Plugin
Issue Type: Bug
Affects Versions: 3.7.0
Environment: Linux (Ubuntu), OpenJDK 9
Reporter: Nils Christian Ehmke
Hi,
First of all: Thank you for providing us with the maven compiler plugin.
Now about my issue. I have a project in which I use the release-flag of the
maven compiler plugin. My pom contains something like the following in the
parent pom:
{code}
<properties>
<maven.compiler.source>1.9</maven.compiler.source>
<maven.compiler.target>1.9</maven.compiler.target>
<maven.compiler.release>9</maven.compiler.release>
</properties>
{code}
Especially the release-flag seems to be necessary so that Eclipse uses the JDK9
libs. Under windows (with an Oracle JDK), this works just fine. However, our
build server (under Linux) cannot work with this. It fails with
{code}
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile (default-compile)
on project ...
Fatal error compiling: invalid flag: --release -> [Help 1]
{code}
It seems that the release-flag under Linux/OpenJDK has to be called with a
single hyphen and not with two. Is there anything you can do about this? Any
workaround maybe?
Thank you and best regards
Nils
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