in tools/javac/ApiCollector.java [49:55]
public List<String> getJava8CompilationUnitPaths() {
Path moduleInfo = Path.of("module-info.java");
return compilationUnitHashMap.keySet().stream().map(f -> {
Path p = Path.of(f.toUri()).toAbsolutePath();
return p.getFileName().equals(moduleInfo) ? null : p.toString();
}).filter(Objects::nonNull).collect(Collectors.toList());
}