private void initPackageChooser(
            String targetPackageName,
            PsiDirectory targetDirectory,
            List<KtFile> sourceFiles
    ) {
        if (targetPackageName != null) {
            classPackageChooser.prependItem(targetPackageName);
            classPackageChooser.setEnabled(freezeTargets);
        }

        ((KotlinDestinationFolderComboBox) destinationFolderCB).setData(
                myProject,
                targetDirectory,
                s-> setErrorText(s),
                classPackageChooser.getChildComponent()
        );
    }
private void initPackageChooser(
            String targetPackageName,
            PsiDirectory targetDirectory,
            List<KtFile> sourceFiles
    )