fix NoSuchElementException at Div2View.trackChildrenVisibility() call

commit_hash:10a13ec650266f4ccb735838fe6fa57bbb798e97

client/android/div/src/main/java/com/yandex/div/core/view2/Div2View.kt

@@ -87,6 +87,7 @@ import com.yandex.div.internal.core.VariableMutationHandler
 import com.yandex.div.internal.util.UiThreadHandler.Companion.executeOnMainThreadBlocking
 import com.yandex.div.internal.util.hasScrollableChildUnder
 import com.yandex.div.internal.util.immutableCopy
+import com.yandex.div.internal.util.toMapSafe
 import com.yandex.div.internal.widget.FrameContainerLayout
 import com.yandex.div.internal.widget.menu.OverflowMenuSubscriber
 import com.yandex.div.json.expressions.ExpressionResolver
@@ -636,7 +637,7 @@ class Div2View private constructor(
     fun trackChildrenVisibility(): Unit = bindingDispatcher.runWithinBindingContext {
         val visibilityActionTracker = div2Component.visibilityActionTracker
         val bindingsSnapshot = synchronized(viewToDivBindings) {
-            viewToDivBindings.toMap()
+            viewToDivBindings.toMapSafe()
         }
         bindingsSnapshot.forEach { (view, div) ->
             view.bindingContext?.expressionResolver?.let {
@@ -652,7 +653,7 @@ class Div2View private constructor(
     private fun discardChildrenVisibility() {
         val visibilityActionTracker = div2Component.visibilityActionTracker
         val bindingsSnapshot = synchronized(viewToDivBindings) {
-            viewToDivBindings.toMap()
+            viewToDivBindings.toMapSafe()
         }
         bindingsSnapshot.forEach { (view, div) ->
             view.bindingContext?.expressionResolver?.let {

client/android/utils/src/main/java/com/yandex/div/internal/util/Collections.kt

@@ -3,6 +3,7 @@ package com.yandex.div.internal.util
 import androidx.collection.ArrayMap
 import com.yandex.div.core.annotations.InternalApi
 import java.util.Collections
+import java.util.WeakHashMap
 
 @InternalApi
 public fun <K, V> arrayMap(): MutableMap<K, V> = ArrayMap<K, V>()
@@ -63,3 +64,20 @@ public inline fun <T> List<T>?.compareNullableWith(other: List<T>?, comparator:
 
     return compareWith(other, comparator)
 }
+
+@InternalApi
+public fun <K, V> WeakHashMap<out K, V>.toMapSafe(): Map<K, V> {
+    if (isEmpty()) {
+        return emptyMap()
+    }
+
+    val result = mutableMapOf<K, V>()
+    val iterator = entries.iterator()
+    try {
+        while (iterator.hasNext()) {
+            val entry = iterator.next()
+            result[entry.key] = entry.value
+        }
+    } catch (e: NoSuchElementException) { }
+    return result
+}