# HG changeset patch
# User igerasim
# Date 1532136539 25200
#      Fri Jul 20 18:28:59 2018 -0700
# Node ID 6ba34b4a755211450a80118cc911adaa000889c9
# Parent  516acf6956a27a0562ecb477c444e5d386fdbd84
[mq]: 8207314-Unnecessary-reallocation-when-constructing-WeakHashMap-from-a-large-Map

diff --git a/src/java.base/share/classes/java/util/WeakHashMap.java b/src/java.base/share/classes/java/util/WeakHashMap.java
--- a/src/java.base/share/classes/java/util/WeakHashMap.java
+++ b/src/java.base/share/classes/java/util/WeakHashMap.java
@@ -252,7 +252,7 @@
      * @since   1.3
      */
     public WeakHashMap(Map<? extends K, ? extends V> m) {
-        this(Math.max((int) (m.size() / DEFAULT_LOAD_FACTOR) + 1,
+        this(Math.max((int) ((float)m.size() / DEFAULT_LOAD_FACTOR + 1.0F),
                 DEFAULT_INITIAL_CAPACITY),
              DEFAULT_LOAD_FACTOR);
         putAll(m);