From 3ef3678ed08437fbbc40fbc841e2743dd1c9a703 Mon Sep 17 00:00:00 2001
From: Comick <comick@gmail.org>
Date: Thu, 17 May 2018 23:51:21 +0200
Subject: [PATCH] Fix TSetFromMap#add return value

---
 .../src/main/java/org/teavm/classlib/java/util/TSetFromMap.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/classlib/src/main/java/org/teavm/classlib/java/util/TSetFromMap.java b/classlib/src/main/java/org/teavm/classlib/java/util/TSetFromMap.java
index f2b943ca8..1ceb3ce9e 100644
--- a/classlib/src/main/java/org/teavm/classlib/java/util/TSetFromMap.java
+++ b/classlib/src/main/java/org/teavm/classlib/java/util/TSetFromMap.java
@@ -46,7 +46,7 @@ public class TSetFromMap<E> extends TAbstractSet<E> {
 
     @Override
     public boolean add(E e) {
-        return map.put(e, TBoolean.TRUE) != null;
+        return map.put(e, TBoolean.TRUE) == null;
     }
 
     @Override