Missed field

src/java.base/share/classes/java/lang/reflect/Field.java

@@ -76,22 +76,18 @@ class Field extends AccessibleObject implements Member {
     private final boolean             trustedFinal;
     // Generics and annotations support
     private final transient String    signature;
-    // generic info repository; lazily initialized
-    private transient volatile FieldRepository genericInfo;
     private final byte[]              annotations;
-    // Cached field accessor created without override
-    @Stable
-    private FieldAccessor fieldAccessor;
-    // Cached field accessor created with override
-    @Stable
-    private FieldAccessor overrideFieldAccessor;
-    // For sharing of FieldAccessors. This branching structure is
-    // currently only two levels deep (i.e., one root Field and
-    // potentially many Field objects pointing to it.)
-    //
-    // If this branching structure would ever contain cycles, deadlocks can
-    // occur in annotation code.
-    private Field               root;
+
+    /**
+     * Fields are mutable due to {@link AccessibleObject#setAccessible(boolean)}.
+     * Thus, we return a new copy of a root each time a field is returned.
+     * Some lazily initialized immutable states can be stored on root and shared to the copies.
+     */
+    private Field root;
+    private transient volatile FieldRepository genericInfo;
+    private @Stable FieldAccessor fieldAccessor; // access control enabled
+    private @Stable FieldAccessor overrideFieldAccessor; // access control suppressed
+    // End shared states
 
     // Generics infrastructure
 
@@ -107,22 +103,18 @@ private GenericsFactory getFactory() {
     // Accessor for generic info repository
     private FieldRepository getGenericInfo() {
         var genericInfo = this.genericInfo;
-        // lazily initialize repository if necessary
         if (genericInfo == null) {
             var root = this.root;
             if (root != null) {
                 genericInfo = root.getGenericInfo();
             } else {
-                // create and cache generic info repository
-                genericInfo = FieldRepository.make(getGenericSignature(),
-                        getFactory());
+                genericInfo = FieldRepository.make(getGenericSignature(), getFactory());
             }
             this.genericInfo = genericInfo;
         }
-        return genericInfo; //return cached repository
+        return genericInfo;
     }
 
-
     /**
      * Package-private constructor
      */