Negatable Optional<Boolean> not recognized when annotation processor is enabled.

[nineinchnick]

I have an option like this:

    @Option(names = "--progress", paramLabel = "<progress>", description = "Show query progress", negatable = true)
    public Optional<Boolean> progress;

and I'm getting this error when building the project with Maven:

[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /Users/jwas/src/trino/client/trino-cli/src/main/java/io/trino/cli/ClientOptions.java:[144,30] progress must be a boolean: only boolean options can be negatable.

when I enable the annotation processor in the pom.xml file:

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <annotationProcessorPaths>
                        <path>
                            <groupId>info.picocli</groupId>
                            <artifactId>picocli-codegen</artifactId>
                            <version>4.6.3</version>
                        </path>
                    </annotationProcessorPaths>
                    <compilerArgs>
                        <arg>-Aproject=${project.groupId}/${project.artifactId}</arg>
                    </compilerArgs>
                </configuration>
            </plugin>

It works without the annotation processor.
I can't really avoid using the Optional and I'm trying to build a static binary using GraalVM.

[remkop]

Hi @nineinchnick thank you for raising this!

For now, I suspect that the only way around the annotation processor's compilation error is to replace Optional<Boolean> with Boolean... 😓

It is a good idea to try to improve the annotation processor to deal with this.
Will you be able to create a pull request for this?

[nineinchnick]

I'd love to try! Any pointers?

[nineinchnick]

I've been looking at the annotation processor tests but there's a lot of different kinds of tests and I can't find a basic one that'd cover most data types.