false-positive in EXS_EXCEPTION_SOFTENING_NO_CONSTRAINTS when rethrowing exception

[Vampire]

I have some code that catches a RuntimeException subclass, enriches it with some details and rethrows the same exception instance.
The rule description "catching a checked exception and weakening it to a runtime exception" does not apply.
But nevertheless I get a finding reported by 7.6.0.

[mebigfatguy]

I tried doing

public class EXS_Sample {
public long fpRTToRT(String s) {
try {
throw new MyRTE();
} catch (MyRTE r) {
MyRTE rr = r.embellish("important!");
throw rr;
}
}
}

class MyRTE extends RuntimeException {
String data;

class MyRTE extends RuntimeException {
String data;

public MyRTE() {
}

MyRTE embellish(String s) {
    data = s;
    return this;
}

}

but couldn't reproduce. can you break my sample?

[Vampire]

Maybe try to throw r, not rr?
Otherwise I have to try again.