How to tell compiler to use openjdk 11 via pom.xml

user_11662809 0
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How to configure OpenJDK 11 in pom file.

<properties>
  <maven.compiler.plugin.version>3.8.0</maven.compiler.plugin.version>
  <maven.compiler.target>11</maven.compiler.target>
  <maven.compiler.source>11</maven.compiler.source>
</properties>
maven-compiler-plugin java-11 maven java
2 Answers

The problem is probably in the version of Java you're using to run Maven. See the discussion here:

Unable to compile simple Java 10 / Java 11 project with Maven

If you want to make Maven recognize a target release of 10 or 11, you have to first run Maven with Java 11. Check that the Java that Maven is using is correct by doing mvn --version.

user_66509700

Here is a bit more advanced example that allows you to compile Java 11 while your main java version is 8. Most of my projects are still java 8 so I find it usefull.

<plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.0</version>
            <configuration>
                <release>11</release>
                <fork>true</fork>
                <executable>C:\Program Files\Java\jdk-11.0.2\bin\javac</executable>
            </configuration>
        </plugin>
user_20443020
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