Wrong java version in `maven-compiler-plugin`

[volodya-lombrozo]

We expect that maven during compilation will use 8 version of Java:

      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.10.1</version>
        <configuration combine.self="override">
          <source>8</source>
          <target>8</target>
        </configuration>
      </plugin>

But at the same time we use features from Java 11:

Files.readString(path);
...
Path.of(...);

I don't clearly understand why maven even build the project, but in my IDEA a see tons of warning and errors. Can we increase the version of Java for maven-compiler-plugin, at least to make it more clear?

[volodya-lombrozo]

@advasileva What do you think?

[advasileva]

@volodya-lombrozo Answered in #73