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  1. Flink
  2. FLINK-7032

Intellij is constantly changing language level of sub projects back to 1.6

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 1.3.2, 1.4.0
    • Build System
    • None

    Description

      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:

      			<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>

      where ${java.version} is set to 1.7 in the properties, but it forgets to overwrite the following properties from apache-18.pom:

        <properties>
    <maven.compiler.source>1.6</maven.compiler.source>
    <maven.compiler.target>1.6</maven.compiler.target>
  </properties>

      It seems like compiling from console using maven ignores those values, but they are confusing Intellij.

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            pnowojski Piotr Nowojski
            pnowojski Piotr Nowojski
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