Merge "Fix UnsupportedOperationException from immutable set" into main

import com.android.settingslib.RestrictedSwitchPreference;

import com.android.settingslib.widget.LayoutPreference;

import java.util.Collections;

import java.util.Arrays;

import java.util.HashSet;

import java.util.Optional;

import java.util.Set;

public class InteractAcrossProfilesDetails extends AppInfoBase

        implements Preference.OnPreferenceClickListener {

        String disallowedPackagesString = Settings.Global.getString(getContentResolver(),

                CONNECTED_APPS_DISALLOWED_PACKAGES);

        Set<String> allowedPackagesSet = getSetFromString(allowedPackagesString);

        Set<String> disallowedPackagesSet = getSetFromString(disallowedPackagesString);

        HashSet<String> allowedPackagesSet = getSetFromString(allowedPackagesString);

        HashSet<String> disallowedPackagesSet = getSetFromString(disallowedPackagesString);

        if (enabled) {

            allowedPackagesSet.add(crossProfilePackage);

                String.join(",", disallowedPackagesSet));

    }

    private Set<String> getSetFromString(String packages) {

    private HashSet<String> getSetFromString(String packages) {

        return Optional.ofNullable(packages)

                .map(pkg -> Set.of(pkg.split(",")))

                .orElse(Collections.emptySet());

                .map(pkg -> new HashSet<>(Arrays.asList(pkg.split(","))))

                .orElseGet(HashSet::new);

    }

}