Piotr Nowojski created FLINK-7032:
-------------------------------------
Summary: Intellij is constantly changing language level of sub
projects back to 1.6
Key: FLINK-7032
URL: https://issues.apache.org/jira/browse/FLINK-7032
Project: Flink
Issue Type: Improvement
Reporter: Piotr Nowojski
Assignee: Piotr Nowojski
Every time I do maven reimport projects, Intellij is switching back to 1.6
language level. I tracked down this issue to misconfiguration in our pom.xml
file. It correctly configure maven-compiler-plugin:
{code:xml}
<plugin>
<!-- just define the Java version to be used
for compiling and plugins -->
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version><!--$NO-MVN-MAN-VER$-->
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<!-- The output of Xlint is not shown
by default, but we activate it for the QA bot
to be able to get more warnings -->
<compilerArgument>-Xlint:all</compilerArgument>
</configuration>
</plugin>
{code}
where ${java.version} is set to 1.7 in the properties, but it forgets to
overwrite the following properties from apache-18.pom:
{code:xml}
<properties>
<maven.compiler.source>1.6</maven.compiler.source>
<maven.compiler.target>1.6</maven.compiler.target>
</properties>
{code}
It seems like compiling from console using maven ignores those values, but they
are confusing Intellij.
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