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Posted to dev@flink.apache.org by "Dong Lin (Jira)" <ji...@apache.org> on 2022/12/25 08:35:00 UTC

[jira] [Created] (FLINK-30501) Update pom.xml to use Java 11 by default

Dong Lin created FLINK-30501:
--------------------------------

             Summary: Update pom.xml to use Java 11 by default
                 Key: FLINK-30501
                 URL: https://issues.apache.org/jira/browse/FLINK-30501
             Project: Flink
          Issue Type: Improvement
            Reporter: Dong Lin


Flink 1.15 and later versions require at least Java 11 to build from sources [1]. However, the pom.xml on the master branch still sets target.java.version to 1.8, which is inconsistent with [1].

In addition, if users build Flink with Java 8 using the following command, the build would fail with org.apache.maven.plugin.MojoExecutionException.

 

```
mvn clean install -DskipTests -Dfast -Pskip-webui-build

```

 

We should update pom.xml to use Java 11 as the target Java version. And maven package/install should fail with proper error if users Java version is below 11.

 

 [1] https://nightlies.apache.org/flink/flink-docs-release-1.15/docs/flinkdev/building/



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