thrown types cannot be inferred from lambda body because of cyclic inference

[Thomas Jung]

Hi,

the following does not compile:

import com.google.common.base.*;
class X{
	private Predicate<Integer> x = new Predicate<Integer>(){
		public boolean apply(Integer v) { return  v % 3 == 0; }
	};
	Predicate<Integer> y = #{Integer v -> v % 3 == 0 };
	Predicate<Integer> z = #{v -> v % 3 == 0 }; //does not compile
}

X.java:11: warning: thrown types cannot be inferred from lambda body
because of cyclic inference
	Predicate<Integer> z = #{v -> v % 3 == 0 }; //does not compile
	                       ^
  explicit type required for the following parameter: v
1 warning

The error message is a bit strange. I can't see a cycle. Could someone
explain it?

Thomas