Use Set instead of List
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@ -22,7 +22,7 @@ import javax.inject.Inject
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internal class SessionListeners @Inject constructor() {
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internal class SessionListeners @Inject constructor() {
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private val listeners = ArrayList<Session.Listener>()
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private val listeners = mutableSetOf<Session.Listener>()
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fun addListener(listener: Session.Listener) {
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fun addListener(listener: Session.Listener) {
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synchronized(listeners) {
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synchronized(listeners) {
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