Fix RubyPropertyBinding

main.rb

@@ -35,22 +35,19 @@ def start(stage)
     ## -
     # some_label.text_property.bind(Bindings.select_string(all_items.get_selection_model.selected_item_property, "blurp"))
 
-    # - This works..
+    # # - This works..
+    # # -
+    # all_items.get_selection_model.selected_item_property.add_listener(
+    #   ->(_, _, nw) { some_label.text = "heading: #{nw.heading} (value: #{nw.value})" }
+    # )
+
+    # - Trying with Enebo's RubyPropertyBinding suggestion, a level seems to be missing at the reload_value method
+    # - https://gist.github.com/enebo/e991ee9d54fd24f69127443388b440ee
     # -
-    all_items.get_selection_model.selected_item_property.add_listener(
-      ->(_, _, nw) { some_label.text = "heading: #{nw.heading} (value: #{nw.value})" }
+    some_label.text_property.bind(
+      RubyPropertyBinding.new(property: all_items.get_selection_model.selected_item_property, method: "blurp")
     )
 
-    ## - Trying with Enebo's RubyPropertyBinding suggestion, a level seems to be missing at the reload_value method
-    ## - https://gist.github.com/enebo/e991ee9d54fd24f69127443388b440ee
-    ## -
-    # some_label.text_property.bind(
-    #   RubyPropertyBinding.new(
-    #     property: all_items.get_selection_model.selected_item_property,
-    #     method: "blurp"
-    #   )
-    # )
-
     stage.scene = Scene.new(root)
     stage.title = "Hello Universe"
     stage.show

main_item.rb

@@ -1,4 +1,5 @@
 require "jrubyfx"
+require "pry"
 
 java_import "javafx.scene.control.TreeItem"
 

ruby_property_binding.rb

@@ -1,4 +1,5 @@
 require 'set'
+require "pry"
 
 # Note: I added @valid as explcit boolean because method may return nil as
 # valid value so I cannot overload @value.
@@ -44,6 +45,7 @@ def getValue
   end
 
   def reload_value
-    @value = @property.__send__ @method
+    return unless @property.get
+    @value = @property.get.__send__ @method
   end
 end