--- old/src/java.desktop/share/classes/sun/java2d/opengl/OGLGraphicsConfig.java	2019-05-16 19:16:07.000000000 +0300
+++ new/src/java.desktop/share/classes/sun/java2d/opengl/OGLGraphicsConfig.java	2019-05-16 19:16:07.000000000 +0300
@@ -34,7 +34,7 @@
  * GLXGraphicsConfig and WGLGraphicsConfig, making it easier to invoke these
  * methods directly from OGLSurfaceData.
  */
-interface OGLGraphicsConfig extends
+public interface OGLGraphicsConfig extends
     AccelGraphicsConfig, SurfaceManager.ProxiedGraphicsConfig
 {
     OGLContext getContext();