--- old/src/demo/share/jfc/J2Ddemo/java2d/DemoPanel.java	2020-01-22 16:03:20.000000000 -0800
+++ new/src/demo/share/jfc/J2Ddemo/java2d/DemoPanel.java	2020-01-22 16:03:20.000000000 -0800
@@ -64,7 +64,7 @@
         try {
             if (obj instanceof String) {
                 className = (String) obj;
-                obj = Class.forName(className).newInstance();
+                obj = Class.forName(className).getDeclaredConstructor().newInstance();
             }
             if (obj instanceof Component) {
                 add((Component) obj);