--- old/src/java.base/share/classes/java/util/HashSet.java	2019-01-04 10:00:18.186618737 -0800
+++ new/src/java.base/share/classes/java/util/HashSet.java	2019-01-04 10:00:17.866619001 -0800
@@ -306,7 +306,7 @@
 
         // Read load factor and verify positive and non NaN.
         float loadFactor = s.readFloat();
-        if (loadFactor <= 0 || Float.isNaN(loadFactor)) {
+        if (!(loadFactor > 0)) {        // also checks for NaNs
             throw new InvalidObjectException("Illegal load factor: " +
                                              loadFactor);
         }