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

@@ -549,16 +549,22 @@
         if (parameterAnnotations == null)
             return new Annotation[numParameters][0];
 
         Annotation[][] result = parseParameterAnnotations(parameterAnnotations);
 
-        if (result.length != numParameters)
-            handleParameterNumberMismatch(result.length, numParameters);
+        if (result.length != numParameters &&
+            handleParameterNumberMismatch(result.length, numParameters)) {
+            Annotation[][] tmp = new Annotation[result.length+1][];
+            // Shift annotations down one to account for an implicit leading parameter
+            System.arraycopy(result, 0, tmp, 1, result.length);
+            tmp[0] = new Annotation[0];
+            result = tmp;
+        }
         return result;
     }
 
-    abstract void handleParameterNumberMismatch(int resultLength, int numParameters);
+    abstract boolean handleParameterNumberMismatch(int resultLength, int numParameters);
 
     /**
      * {@inheritDoc}
      * @throws NullPointerException  {@inheritDoc}
      */