Fix Javadoc and null analysis related warnings

This CL also adds @SuppressWarning("unused" to java-overridable package.

Bug: 18003991
Change-Id: If70527e30654384705d7a814f5efd181d9f539e1

1 files changed, 4 insertions, 1 deletions

diff --git a/java/src/com/android/inputmethod/latin/RichInputMethodManager.java b/java/src/com/android/inputmethod/latin/RichInputMethodManager.java
index 113a20483..894c115d8 100644
--- a/java/src/com/android/inputmethod/latin/RichInputMethodManager.java
+++ b/java/src/com/android/inputmethod/latin/RichInputMethodManager.java
@@ -38,6 +38,8 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 
+import javax.annotation.Nonnull;
+
 /**
  * Enrichment class for InputMethodManager to simplify interaction and add functionality.
  */
@@ -301,12 +303,13 @@ public class RichInputMethodManager {
         return INDEX_NOT_FOUND;
     }
 
+    @Nonnull
     public InputMethodSubtype getCurrentRawSubtype() {
         return mImmWrapper.mImm.getCurrentInputMethodSubtype();
     }
 
     public RichInputMethodSubtype createCurrentRichInputMethodSubtype(
-            final InputMethodSubtype rawSubtype) {
+            @Nonnull final InputMethodSubtype rawSubtype) {
         return AdditionalFeaturesSettingUtils.createRichInputMethodSubtype(this, rawSubtype,
                 mContext);
     }