javac fails to substitute type variables into a constructor's throws clause

FULL PRODUCT VERSION :
openjdk7

A DESCRIPTION OF THE PROBLEM :
The following program should compile without error, but javac rejects it.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile the enclosed sources and observe that it fails to compile.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
compile successfully.
ACTUAL -
fails to compile.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
Hello.java:7: unreported exception X; must be caught or declared to be thrown
new Hello(new Foo<Exception>());
^
1 error


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class Hello {
    static class Foo<X> {}

    <X extends Throwable> Hello(Foo<X> foo) throws X {}

    public static void main(String[] args) throws Exception {
new Hello(new Foo<Exception>());
    }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
none known