FULL PRODUCT VERSION :
java version "1.5.0_05"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_05-b05)
Java HotSpot(TM) Client VM (build 1.5.0_05-b05, mixed mode, sharing)


A DESCRIPTION OF THE PROBLEM :
Valid generics code does not compile under certain conditions

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Try to compile the code given.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The code should compile
ACTUAL -
The code does not compile

ERROR MESSAGES/STACK TRACES THAT OCCUR :
tests/CompileTest2.java:26: <R,W>test(java.util.Collection<R>) in tests.CompileTest2.RequestMap<java.lang.Object> cannot be applied to <tests.CompileTest2.DeltaRequest,double[]>(java.util.Collection<tests.CompileTest2.DeltaRequest>)
                DeltaRequest o = m.<DeltaRequest, double[]>test (c);
                                  ^
1 error


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package tests;

import java.util.Collection;
import java.util.Collections;

public class CompileTest2 {

	class Request<R extends Request<R, V>,V> {}
	
	class DeltaRequest extends Request<DeltaRequest, double[]> {}

	class RequestMap<V> {
		public <R extends Request<R, W>, W extends V> R test (Collection<R> c) {
			// In my real code I make use of W of course
			return null;
		}

	}

	public void f () {
		RequestMap<Object> m = new RequestMap<Object> ();
		Collection<DeltaRequest> c = Collections.singleton (new DeltaRequest ());
		// This line not compile?
		DeltaRequest o = m.<DeltaRequest, double[]>test (c);
	}
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Remove the type parameter V from RequestMap