Bug 355940

Description Amit Mendapara 2011-08-26 08:17:53 EDT

Build Identifier: I20110613-1736

Xtend2 reports a strange `incompatible types` error within an Xtend class method if we pass instance of that class to some external method defined in pure Java. Let's see an example.

The `Hello.xtend` is:

---------------------
package com.my.hello

class Hello {
	
	String message
	
	def setMessage(String message) {
		this.message = message
	}
	
	override toString() {
		return message
	}
}
---------------------

The `HelloService.java` is:

---------------------
package com.my.hello;

public class HelloService {

	public void say(Hello hello) {
		System.err.println(hello);
	}
}
---------------------

The `Test.xtend` is:

---------------------
package com.my.hello

class Test {
	
	def test() {
		val helloService = new HelloService()
		val hello = new Hello()
		
		hello.message = 'Hello World!'
		
		helloService.say(hello)
	}
}
---------------------

In the `Test.xtend` I am seeing following error at line: 11

Incompatible types. Expected com.my.hello.Hello but was com.my.hello.Hello

I have tested with xtext 2.0.0 as well as 2.0.1

This so critical that we are unable to move ahead with our projects.

Reproducible: Always

Steps to Reproduce:
1. Create a Java project with plugin & xtext nature
2. Add plugin dependency to org.eclipse.xtext.xbase.lib
3. Add plugin dependency to org.eclipse.xtext.xtend2.lib
4. Create all the three files listed in the discription