src/jdk.incubator.jpackage/share/classes/jdk/incubator/jpackage/internal/StandardBundlerParam.java

*** 512,521 ****
--- 512,533 ----
              }
          }
          return applicationImage;
      }
  
+     static File getPredefinedRuntime(Map<String, ? super Object> params)
+             throws PackagerException {
+         File runtime = PREDEFINED_RUNTIME_IMAGE.fetchFrom(params);
+         if (runtime != null && !runtime.exists()) {
+             throw new PackagerException (
+                     "message.runtime-image-dir-does-not-exist",
+                     PREDEFINED_RUNTIME_IMAGE.getID(),
+                     runtime.toString());
+         }
+         return runtime;
+     }
+ 
      static void copyPredefinedRuntimeImage(
              Map<String, ? super Object> params,
              AbstractAppImageBuilder appBuilder)
              throws IOException , ConfigException {
          File topImage = PREDEFINED_RUNTIME_IMAGE.fetchFrom(params);