Add JSR305 annotation to LeakGuardHandlerWrapper

Change-Id: I7456200af739db4510c5549b7bc894fb48749455

1 files changed, 6 insertions, 5 deletions

diff --git a/java/src/com/android/inputmethod/latin/utils/LeakGuardHandlerWrapper.java b/java/src/com/android/inputmethod/latin/utils/LeakGuardHandlerWrapper.java
index dd6fac671..9a5be99b3 100644
--- a/java/src/com/android/inputmethod/latin/utils/LeakGuardHandlerWrapper.java
+++ b/java/src/com/android/inputmethod/latin/utils/LeakGuardHandlerWrapper.java
@@ -21,21 +21,22 @@ import android.os.Looper;
 
 import java.lang.ref.WeakReference;
 
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
 public class LeakGuardHandlerWrapper<T> extends Handler {
     private final WeakReference<T> mOwnerInstanceRef;
 
-    public LeakGuardHandlerWrapper(final T ownerInstance) {
+    public LeakGuardHandlerWrapper(@Nonnull final T ownerInstance) {
         this(ownerInstance, Looper.myLooper());
     }
 
-    public LeakGuardHandlerWrapper(final T ownerInstance, final Looper looper) {
+    public LeakGuardHandlerWrapper(@Nonnull final T ownerInstance, final Looper looper) {
         super(looper);
-        if (ownerInstance == null) {
-            throw new NullPointerException("ownerInstance is null");
-        }
         mOwnerInstanceRef = new WeakReference<>(ownerInstance);
     }
 
+    @Nullable
     public T getOwnerInstance() {
         return mOwnerInstanceRef.get();
     }