diff --git a/gson/pom.xml b/gson/pom.xml
index 66c302b5..3b1190d3 100644
--- a/gson/pom.xml
+++ b/gson/pom.xml
@@ -49,6 +49,12 @@
http://www.google.com
+
+ com.google.code.findbugs
+ jsr305
+ 3.0.0
+ true
+
junit
junit
diff --git a/gson/src/main/java/com/google/gson/Gson.java b/gson/src/main/java/com/google/gson/Gson.java
index 844188ac..9d5d6ffd 100644
--- a/gson/src/main/java/com/google/gson/Gson.java
+++ b/gson/src/main/java/com/google/gson/Gson.java
@@ -31,6 +31,8 @@ import java.util.HashMap;
import java.util.List;
import java.util.Map;
+import javax.annotation.concurrent.ThreadSafe;
+
import com.google.gson.internal.ConstructorConstructor;
import com.google.gson.internal.Excluder;
import com.google.gson.internal.Primitives;
@@ -96,6 +98,7 @@ import com.google.gson.stream.MalformedJsonException;
* @author Joel Leitch
* @author Jesse Wilson
*/
+@ThreadSafe
public final class Gson {
static final boolean DEFAULT_JSON_NON_EXECUTABLE = false;