Add a missing @Nullable annotation.

PiperOrigin-RevId: 364889141
google · Mar 24, 2021 · 553603f · 553603f
1 parent 3e14f54
commit 553603f
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/check_api/src/main/java/com/google/errorprone/util/ASTHelpers.java b/check_api/src/main/java/com/google/errorprone/util/ASTHelpers.java
@@ -1024,6 +1024,7 @@ public Tree visitParameterizedType(ParameterizedTypeTree tree, Void unused) {
   }
 
   /** Return the enclosing {@code ClassSymbol} of the given symbol, or {@code null}. */
+  @Nullable
   public static ClassSymbol enclosingClass(Symbol sym) {
     // sym.owner is null in the case of module symbols.
     return sym.owner == null ? null : sym.owner.enclClass();