how to generate and use java files in generated sources properly

[bleak crow]

i have this code snipped

// Write to target/generated-sources/com/asdru/oopack/Version.java
        JavaFile javaFile = JavaFile.builder(packageName, enumType)
                .build();
        Path path = Paths.get("target/generated-sources");
        javaFile.writeTo(path);

that creates a version enum at the mentioned path. however my main project doesnt seem to find it (and neither does the github action i have setup)

[rare tapir]

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[vague herald]

You shouldn't do it this way.
Once your application is packaged in a JAR or similar, there will be no generated-sources or target folder

these folders only exist while you are developing the application

if you want to generate code at compile-time, take a look at annotation processors

and if you need to generate code at runtime, you could in principle use class loading to generate it but then you couldn't call it without reflection

Also note this other problem with your current approach: If you just write files to generated sources, you would need to recompile your application) (which may delete the generated sources directory) to use these classes

[rare tapir]

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[bleak crow]

Oh ok thanks

[rare tapir]

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[bleak crow]

It takes a while to run since its fetching data from the web, thats why i separated it into its own main function

[vague herald]

There are two situations where you are allowed to modify the contents of the generated-sources folder:

• in an annotation processor
• in certain phases during the Maven build