From 1ad9f1c9857ad54f1413efcf1e6dc9ff86e4f68c Mon Sep 17 00:00:00 2001
From: Denis Zharkov <denis.zharkov@jetbrains.com>
Date: Thu, 6 Oct 2016 11:09:05 +0300
Subject: [PATCH] Fix serialVersionUID for EmptyMap and EmptySet

Otherwise removal of redundant special stubs
leads to InvalidClassException during deserialization
---
 libraries/stdlib/src/kotlin/collections/Maps.kt | 2 ++
 libraries/stdlib/src/kotlin/collections/Sets.kt | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/libraries/stdlib/src/kotlin/collections/Maps.kt b/libraries/stdlib/src/kotlin/collections/Maps.kt
index 5fc02a8bfcd..cd8cd063658 100644
--- a/libraries/stdlib/src/kotlin/collections/Maps.kt
+++ b/libraries/stdlib/src/kotlin/collections/Maps.kt
@@ -7,6 +7,8 @@ import java.io.Serializable
 import java.util.*
 
 private object EmptyMap : Map<Any?, Nothing>, Serializable {
+    private const val serialVersionUID: Long = 8246714829545688274
+
     override fun equals(other: Any?): Boolean = other is Map<*,*> && other.isEmpty()
     override fun hashCode(): Int = 0
     override fun toString(): String = "{}"
diff --git a/libraries/stdlib/src/kotlin/collections/Sets.kt b/libraries/stdlib/src/kotlin/collections/Sets.kt
index 013c9f76b4b..4eeb5f5c61c 100644
--- a/libraries/stdlib/src/kotlin/collections/Sets.kt
+++ b/libraries/stdlib/src/kotlin/collections/Sets.kt
@@ -8,6 +8,8 @@ import java.util.*
 
 
 internal object EmptySet : Set<Nothing>, Serializable {
+    private const val serialVersionUID: Long = 3406603774387020532
+
     override fun equals(other: Any?): Boolean = other is Set<*> && other.isEmpty()
     override fun hashCode(): Int = 0
     override fun toString(): String = "[]"
@@ -80,4 +82,4 @@ internal fun <T> Set<T>.optimizeReadOnlySet() = when (size) {
     0 -> emptySet()
     1 -> setOf(iterator().next())
     else -> this
-}
\ No newline at end of file
+}