src/java.base/share/classes/jdk/internal/reflect/LangReflectAccess.java

@@ -94,10 +94,13 @@
     public byte[] getConstructorAnnotations(Constructor<?> c);
 
     /** Gets the "parameterAnnotations" field from a Constructor (used for serialization) */
     public byte[] getConstructorParameterAnnotations(Constructor<?> c);
 
+    /** Gets the shared array of parameter types of an Executable. */
+    public Class<?>[] getExecutableSharedParameterTypes(Executable ex);
+
     //
     // Copying routines, needed to quickly fabricate new Field,
     // Method, and Constructor objects from templates
     //