1 files changed, 3 insertions, 2 deletions
diff --git a/api/src/main/java/io/opencensus/trace/Status.java b/api/src/main/java/io/opencensus/trace/Status.java
index f34ab693..d5807ef5 100644
--- a/api/src/main/java/io/opencensus/trace/Status.java
+++ b/api/src/main/java/io/opencensus/trace/Status.java
@@ -249,8 +249,9 @@ public final class Status {
 
   // The canonical code of this message.
   private final CanonicalCode canonicalCode;
+
   // An additional error message.
-  private final String description;
+  @Nullable private final String description;
 
   private Status(CanonicalCode canonicalCode, @Nullable String description) {
     this.canonicalCode = checkNotNull(canonicalCode, "canonicalCode");
@@ -304,7 +305,7 @@ public final class Status {
    * additional fields may be added to Status in the future.
    */
   @Override
-  public boolean equals(Object obj) {
+  public boolean equals(@Nullable Object obj) {
     if (obj == this) {
       return true;
     }