src/java.base/share/classes/java/lang/Class.java

@@ -81,10 +81,11 @@
  import jdk.internal.reflect.ConstantPool;
  import jdk.internal.reflect.Reflection;
  import jdk.internal.reflect.ReflectionFactory;
  import jdk.internal.vm.annotation.ForceInline;
  import jdk.internal.vm.annotation.IntrinsicCandidate;
+ import jdk.internal.vm.annotation.Stable;
  
  import sun.invoke.util.Wrapper;
  import sun.reflect.generics.factory.CoreReflectionFactory;
  import sun.reflect.generics.factory.GenericsFactory;
  import sun.reflect.generics.repository.ClassRepository;

@@ -1058,10 +1059,11 @@
      public Module getModule() {
          return module;
      }
  
      // set by VM
+     @Stable
      private transient Module module;
  
      // Initialized in JVM not by private constructor
      // This field is filtered from reflection access, i.e. getDeclaredField
      // will throw NoSuchFieldException