Source option 6 is no longer supported. Use 7 or later.

[buchmann]

Failure : MAC 12.01. / Apache Maven 3.8.4

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project log4j-rce: Compilation failure: Compilation failure:
[ERROR] Source option 6 is no longer supported. Use 7 or later.
[ERROR] Target option 6 is no longer supported. Use 7 or later.

FiX:

<properties>
  <maven.compiler.source>7</maven.compiler.source>
  <maven.compiler.target>1.7</maven.compiler.target>
</properties>