JRuby Conversion of Scenegraph Node Demo Fails
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Key: JRUBY-2936
URL: http://jira.codehaus.org/browse/JRUBY-2936
Project: JRuby
Issue Type: Bug
Components: Java Integration
Affects Versions: JRuby 1.1.3
Environment: Windows Vista Business but not specific to this platform
Reporter: Paul Fraser
I have added this issue to keep it alive, in the event that it is not already
being handled.
Following discussion on "[EMAIL PROTECTED]" subject "Scene Graph Demo Convert
to JRuby Problem"
Charles Oliver Nutter stated:
So I found the problem..it's a known issue I really dislike, and honestly I
need to try to find a better way to fix it than the way we did in 1.1.3.
Your TransformComposer is < Composer, which is cool. But in cases of Ruby
clases extending Java classes, java_class points at *the wrong class*. You need
to use java_class.java_proxy_class in this case. So that's bug number one.
Unfortunately bug number two is a bit more problematic. Because our Ruby
subclasses of Java classes have some JRuby baggage, I don't think the logic in
the Composer class is going to work correctly. It looks up a default
constructor using reflection and tries to call it, but in our case that doesn't
properly set up the class. Here's the error that results if I use
java_proxy_class (and also construct an instance of TransformComposer to force
our lazy creation of the proxy class):
Caused by: java.lang.NoSuchMethodException:
org.jruby.proxy.com.sun.scenario.animation.Composer$Proxy0.<init>()
Grr. So this particular path to getting scenegraph working has some roadblocks,
but they're roadblocks I want to look at trying to fix for this upcoming
release. So I'm looking into some of them right now.
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