bug fix

annotator-scanner/src/main/java/edu/ucr/cs/riple/scanner/AnnotatorScanner.java

@@ -316,6 +316,7 @@ private static void serializeImpactedRegionForFunctionalInterface(
 
   /**
    * Checks if the given symbol is generated.
+   *
    * @param symbol Given symbol.
    * @param context Error prone context.
    * @return True if the symbol is generated; false otherwise.

annotator-scanner/src/main/java/edu/ucr/cs/riple/scanner/generatedcode/CodeAnnotationInfo.java

@@ -74,7 +74,10 @@ public static CodeAnnotationInfo instance(Context context) {
    *     {@code @Generated}; false otherwise
    */
   public boolean isGenerated(Symbol symbol) {
-    Symbol.ClassSymbol classSymbol = ASTHelpers.enclosingClass(symbol);
+    Symbol.ClassSymbol classSymbol =
+        symbol instanceof Symbol.ClassSymbol
+            ? (Symbol.ClassSymbol) symbol
+            : ASTHelpers.enclosingClass(symbol);
     if (classSymbol == null) {
       Preconditions.checkArgument(
           isClassFieldOfPrimitiveType(