Nested Interfaces can't find the correct method when Java calls Ruby
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Key: JRUBY-2863
URL: http://jira.codehaus.org/browse/JRUBY-2863
Project: JRuby
Issue Type: Bug
Components: Java Integration
Affects Versions: JRuby 1.1.4
Reporter: Logan Barnett
----The Java code----
import java.awt.event.ActionListener;
public class TestFrame extends javax.swing.JFrame
{
// historically, a long chain of listeners went here
public interface RubyEventHandler extends ActionListener
{
}
RubyEventHandler handler;
javax.swing.JCheckBoxMenuItem check_box_item;
public TestFrame(RubyEventHandler handlerInstance)
{
javax.swing.JMenuBar menuBar = new javax.swing.JMenuBar();
check_box_item = new javax.swing.JCheckBoxMenuItem();
menuBar.add(check_box_item);
handler = handlerInstance;
check_box_item.addActionListener(handler);
check_box_item.setText("Check Me");
setJMenuBar(menuBar);
}
}
-----The Ruby code-----
class TestFrame
include Java::TestFrame::RubyEventHandler
def initialize
@view = Java::TestFrame.new(self)
@view.visible = true
end
def actionPerformed(event)
puts "something was clicked"
end
end
TestFrame.new
---- The error when clicking -----
Exception in thread "AWT-EventQueue-0" java.lang.AbstractMethodError:
InterfaceImpl352.actionPerformed(Ljava/awt/event/ActionEvent;)V
at
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1882)
at
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2202)
at
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
at
javax.swing.JToggleButton$ToggleButtonModel.setPressed(JToggleButton.java:269)
at javax.swing.AbstractButton.doClick(AbstractButton.java:334)
at
javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1051)
at apple.laf.CUIAquaMenuItem.doClick(CUIAquaMenuItem.java:119)
at
javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1092)
at java.awt.Component.processMouseEvent(Component.java:5602)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
at java.awt.Component.processEvent(Component.java:5367)
at java.awt.Container.processEvent(Container.java:2010)
at java.awt.Component.dispatchEventImpl(Component.java:4068)
at java.awt.Container.dispatchEventImpl(Container.java:2068)
at java.awt.Component.dispatchEvent(Component.java:3903)
at
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4256)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3936)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3866)
at java.awt.Container.dispatchEventImpl(Container.java:2054)
at java.awt.Window.dispatchEventImpl(Window.java:1791)
at java.awt.Component.dispatchEvent(Component.java:3903)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
---- notes ----
Subsituting RubyEventHandler with ActionListener (the interface it inherits
from) makes this code work. This must be done both in Ruby and in Java.
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