How to avoid OutOfMemory (or OOM) when import packages

[liyuheng55555]

I realized import the whole package will cause OOM:

    JavaClasses allClasses =
        new ClassFileImporter()
            .withImportOption(new ImportOption.DoNotIncludeTests())
            .importPackages("org.apache.iotdb");

Maybe import sub-packages will fix this problem, but is there any other way to auto fix it ?

Such as, ArchUnit might provide something like Stream<JavaClass> as importing result ?

[hankem]

ArchUnit does not just import classes on their own, but also builds up graphs of their dependencies within an import (cf. ClassGraphCreator). A stream of imports of smaller chunks would therefore not have the same functionality as the overall import.

But maybe you can simply increase the heap size for your test? I don't know which classes you have on your classpath, but for my Gradle build using org.apache.iotdb:iotdb-server:1.3.3, this was just enough:

test {
    maxHeapSize = "768m"
}