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kotlinlang

i'm trying to call a jdbi-method from kotlin, and i get:
```
Type inference failed: Not enough information to infer parameter X in 
fun &lt;R : Any!, X : Exception!&gt; withHandle(callback: ((handle: Handle!) → R!)!): R!
Please specify it explicitly.
```

the method signature is `public &lt;R, X extends Exception&gt; R withHandle(HandleCallback&lt;R, X&gt; callback) throws X {`

what am i supposed to do in this case?

What is your code? Did you try to just specify types explicitly?

just the example from the jdbi page:

```
val names = jdbi.withHandle({ handle -&gt;
            handle.createQuery("select name from contacts")
                    .mapTo(String::class.java)
                    .list()
        })
```

i don't know how to specify the type of the exception