Lombok val and var not working on Android

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I'm integrating Project Lombok in our Android app. I'm running into issues with using val and var. I'm getting Incompatible Types error for a field of type var or val, when I assign a value (of any type) to it.

private final val example = new ArrayList<String>();

private var eg2;
eg2=getRandomString();

Has anyone tried var and val in Android? Any help would be appreciated.

I'm using Lombok version 1.16.12 ,Android Studio 2.3 Beta 1, Android Plugin version 2.2.3, and Gradle 3.2.1.

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Joseph Earl On BEST ANSWER

I think I can see your issue - @val and @var only work for local variables - that is variables within a method or block.

So the following will work:

public class ValExample {
  public String example() {
    val example = new ArrayList<String>();
    example.add("Hello, World!");
    val foo = example.get(0);
    return foo.toLowerCase();
  }
}

But it won't work with class members (this won't build):

public class BadValExample {
  private val example = new ArrayList<String>();
}

@var also needs to be manually enabled. To do this add a lombok.config to your project with the contents:

lombok.var.flagUsage = ALLOW