jrubfx-jarify compiled jar does not laucnch #118

jdk8
jruby 9.1.15.0

java -jar v2t.jar
uri:classloader:/fxmlloader/elts.rb:158: warning: <<' after local variable or literal is interpreted as binary operator uri:classloader:/fxmlloader/elts.rb:158: warning: even though it seems like here document Exception running Application: #<Errno::ENOTDIR: Not a directory - classpath:/.jrubyfx_cache> org/jruby/RubyDir.java:449:in mkdir'
uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/fileutils.rb:253:in fu_mkdir' uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/fileutils.rb:227:in block in mkdir_p'
org/jruby/RubyArray.java:1819:in reverse_each' uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/fileutils.rb:225:in block in mkdir_p'
org/jruby/RubyArray.java:1735:in each' uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/fileutils.rb:211:in mkdir_p'
uri:classloader:/fxmlloader/fxml_jit_info.rb:64:in initialize' uri:classloader:/jrubyfx-fxmlloader.rb:294:in load'
uri:classloader:/jrubyfx/controller.rb:129:in load_into' uri:classloader:/jrubyfx/core_ext/stage.rb:82:in fxml'
classpath:/jar-bootstrap.rb:7:in block in start' org/jruby/RubyBasicObject.java:1691:in instance_eval'
uri:classloader:/jrubyfx/module.rb:49:in with' classpath:/jar-bootstrap.rb:6:in start'
uri:classloader:/jrubyfx/java_fx_impl.rb:119:in `block in launch_app_after_platform'