[question] Is it possible to configure the plugin so that it will work with both JDK 8 and 11/17/...?

[reto-hoehener]

We're in the process of migrating projects from Java 8 to 11/17. For now, the target compilation level will remain 8 but I am already testing the build with JDK 17.

I learned that I have to change

<libs>
  <lib>${java.home}/lib/rt.jar</lib>
  <lib>${java.home}/lib/jsse.jar</lib>
  <lib>${java.home}/lib/jce.jar</lib>
</libs>

to

<libs>
  <lib>${java.home}/jmods</lib>
</libs>

Is there a Java version agnostic configuration syntax or some other way to tell the plugin to just use whatever is in java.home?

(I am also missing configuration examples for modern Java versions in the documentation)

[lasselindqvist]

Similar problem is discussed in #350

You might want to open an issue with Proguard itself https://github.com/Guardsquare/proguard-core / https://github.com/Guardsquare/proguard

to make this whole lib passing automatic.

[reto-hoehener]

My current solution (might be of interest for people in the same situation).

Projects that use specific execution-ids need to define their own jdk-11+ profile with configuration for each execution.

    <profile>
      <id>jdk-11-on</id>
      <activation>
        <jdk>[11,)</jdk>
      </activation>
      <build>
        <plugins>
          <plugin>
            <groupId>com.github.wvengen</groupId>
            <artifactId>proguard-maven-plugin</artifactId>
            <configuration>
              <libs>
                <lib>${java.home}/jmods</lib>
              </libs>
            </configuration>
          </plugin>
        </plugins>
      </build>
    </profile>