[jira] [Created] (FLINK-27547) Hardcode of pom aboout java11 & java17 target java version may cause hidden error

["Ran Tao (Jira)" <ji...@apache.org>]

Ran Tao created FLINK-27547:
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             Summary: Hardcode of pom aboout java11 & java17 target java version may cause hidden error
                 Key: FLINK-27547
                 URL: https://issues.apache.org/jira/browse/FLINK-27547
             Project: Flink
          Issue Type: Bug
          Components: API / Scala
    Affects Versions: 1.14.4, 1.15.0
            Reporter: Ran Tao


Current flink parent pom property <target.java.version>1.8</target.java.version> by default. And many modules inherit this property. But java11-target & java17-target profile not update this property when enable it.

Because  the hardcode of profile java11-target (java17 with same problem). In a word, current flink build pom has various ways to control java version.  And I think we should use property target.java.version the one way to control the java version like `release` profile.


{code:java}
<profile>
			<id>java11-target</id>
			<build>
				<plugins>
					<plugin>
						<groupId>org.apache.maven.plugins</groupId>
						<artifactId>maven-compiler-plugin</artifactId>
						<configuration>
							<source>11</source>
							<target>11</target>
                                                   ...
						</configuration>
					</plugin>
				</plugins>
			</build>
		</profile>
{code}

It will cause build error when we set target.java.version for 11. Because current scala-maven-plugin with scala-2.11 or 2.12 only support <=1.8 jvm version.

[ERROR] scalac error: 'jvm-11' is not a valid choice for '-target'
[INFO]   scalac -help  gives more information
[ERROR] scalac error: bad option: '-target:jvm-11'
[INFO]   scalac -help  gives more information




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