Exception java.lang.IncompatibleClassChangeError while running Groovy in Eclipse Juno
===

I have recently downloaded Eclipse Juno and installed latest Groovy plugin.

Now here is how my Groovy file looks like.

    package groovy_support

    class TimePass {
	static void main(def args){
		println "Hello World"
	}
    }

When i run this from either my previous eclipse version (indigo), it runs. When i try it from command line, it runs. On Eclipse Juno, however, it complains with following exception on Eclipse console. 

    Caught: java.lang.IncompatibleClassChangeError: Found class org.objectweb.asm.ClassVisitor, but interface was expected
    java.lang.IncompatibleClassChangeError: Found class org.objectweb.asm.ClassVisitor, but interface was expected

Note that "Groovy Libraries" are already on classpath. 

Now what am i doing wrong here?