[jira] [Commented] (FLINK-7032) Intellij is constantly changing language level of sub projects back to 1.6

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-7032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16072383#comment-16072383 ] 

ASF GitHub Bot commented on FLINK-7032:
---------------------------------------

Github user StefanRRichter commented on the issue:

    https://github.com/apache/flink/pull/4213
  
    I observed similar problems as @pnowojski and the fix helped for me, so +1 from my side.


> 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
>          Components: Build System
>            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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