The code as it stands doesn’t work. I expect the template code was eaten by the HTML-izer of both my blog and/or crazy bob’s blog. Here is the correct code:

    public static void throwIt2(final Throwable exception) {
        class Thrower<T extends Throwable> {
            private void sneakyThrow(Throwable exception) throws T {
                throw (T)exception;
            }
        }
        new Thrower<RuntimeException>().sneakyThrow(exception);
    }

I don't even get a compiler warning. This is a very neat trick.

The code as it stands doesn't work. I expect the template code was eaten by the HTML-izer of both my blog and/or crazy bob's blog. Here is the correct code:

<pre>
public static void throwIt2(final Throwable exception) {
class Thrower<T extends Throwable> {
private void sneakyThrow(Throwable exception) throws T {
throw (T)exception;
}
}
new Thrower<RuntimeException>().sneakyThrow(exception);
}
</pre>

I don't even get a compiler warning. This is a very neat trick.

I propose a utility-class with something like this, and we’re good to go:

public static void throwUnchecked(final Throwable pException) {
// Type parameter to Thrower is erased at compile-time
new Thrower().sneakyThrow(pException);
}

private static class Thrower {
private void sneakyThrow(Throwable pException) throws T {
throw (T) pException; // Unchecked cast
}
}

I’m starting to think this might be useful.. Or… Maybe I’m just tired.. :-P

.k

I propose a utility-class with something like this, and we're good to go:

public static void throwUnchecked(final Throwable pException) {
// Type parameter to Thrower is erased at compile-time
new Thrower().sneakyThrow(pException);
}

private static class Thrower {
private void sneakyThrow(Throwable pException) throws T {
throw (T) pException; // Unchecked cast
}
}

I'm starting to think this might be useful.. Or… Maybe I'm just tired.. :-P

.k