src/java.base/share/classes/jdk/internal/jrtfs/SystemImage.java

@@ -56,11 +56,10 @@
  
      static SystemImage open() throws IOException {
          if (modulesImageExists) {
              // open a .jimage and build directory structure
              final ImageReader image = ImageReader.open(moduleImageFile);
-             image.getRootDirectory();
              return new SystemImage() {
                  @Override
                  Node findNode(String path) throws IOException {
                      return image.findNode(path);
                  }