Fix ConcurrentModificationException in OmniInvokerTest

import androidx.annotation.WorkerThread

import com.android.launcher3.BuildConfig

import com.android.launcher3.util.Executors

import java.util.concurrent.CopyOnWriteArrayList

/** Utility class to manage a set of device configurations */

class DeviceConfigHelper<ConfigType>(private val factory: (PropReader) -> ConfigType) {

    var config: ConfigType

        private set

    private val allKeys: Set<String>

    private val propertiesListener = OnPropertiesChangedListener { onDevicePropsChanges(it) }

    private val sharedPrefChangeListener = OnSharedPreferenceChangeListener { _, _ ->

        recreateConfig()

    }

    private val changeListeners = mutableListOf<Runnable>()

    private val changeListeners = CopyOnWriteArrayList<Runnable>()

    init {

        // Initialize the default config once.