src/jdk.jpackage/share/classes/jdk/jpackage/internal/Bundler.java

*** 115,120 ****
--- 115,125 ----
  
      /**
       * Returns "true" if this bundler is supported on current platform.
       */
      public boolean supported(boolean runtimeInstaller);
+ 
+     /**
+      * Returns "true" if this bundler is he default for the current platform.
+      */
+     public boolean isDefault();
  }