diff --git a/gson/src/main/java/com/google/gson/internal/bind/TypeAdapters.java b/gson/src/main/java/com/google/gson/internal/bind/TypeAdapters.java
index 354ce5a1..f44e056a 100644
--- a/gson/src/main/java/com/google/gson/internal/bind/TypeAdapters.java
+++ b/gson/src/main/java/com/google/gson/internal/bind/TypeAdapters.java
@@ -17,6 +17,7 @@
 package com.google.gson.internal.bind;
 
 import java.io.IOException;
+import java.lang.reflect.Field;
 import java.math.BigDecimal;
 import java.math.BigInteger;
 import java.net.InetAddress;
@@ -776,9 +777,14 @@ public final class TypeAdapters {
 
     public EnumTypeAdapter(Class<T> classOfT) {
       try {
-        for (T constant : classOfT.getEnumConstants()) {
+        for (Field field : classOfT.getDeclaredFields()) {
+          if (!field.isEnumConstant()) {
+            continue;
+          }
+          field.setAccessible(true);
+          T constant = (T)(field.get(null));
           String name = constant.name();
-          SerializedName annotation = classOfT.getField(name).getAnnotation(SerializedName.class);
+          SerializedName annotation = field.getAnnotation(SerializedName.class);
           if (annotation != null) {
             name = annotation.value();
             for (String alternate : annotation.alternate()) {
@@ -788,7 +794,11 @@ public final class TypeAdapters {
           nameToConstant.put(name, constant);
           constantToName.put(constant, name);
         }
-      } catch (NoSuchFieldException e) {
+      } catch (IllegalAccessException e) {
+        throw new AssertionError(e);
+      } catch (NullPointerException e) {
+        throw new AssertionError(e);
+      } catch (ExceptionInInitializerError e) {
         throw new AssertionError(e);
       }
     }