Month: April 2007

The CCR (Concurrency and Coordination Runtime) is out – apparently!

By jonskeet

It seems that the CCR I’d been waiting for is now out, and has been for a while. Unfortunately, as far as I can tell it’s only available as part of the Microsoft Robotics Studio. It falls under the same licence as the Robotics Studio, and can be used in commercial apps (for a fee, I believe) – but why on earth isn’t it available as a standalone download with a simple free licence? Robotics Studio 1.0 is a nearly 50MB download, which is absurd if you’re only after the CCR. It’s relatively little wonder that when searching for the CCR … Continue reading The CCR (Concurrency and Coordination Runtime) is out – apparently!

Sheer Evil: Rethrowing exceptions in Java

By jonskeet

This morning, I was looking through some code and I was annoyed (yet again) at Java’s exception hierarchy, particularly when it comes to checked exceptions. Just as a reminder, everything that can be thrown in Java derives from Throwable. The predefined direct subclasses are Error and Exception. (You can derive from Throwable directly yourself, but I’ve never seen anyone do it, thank goodness.) Exception, and any class deriving from it, count as a checked exception – one that you have to declare if your method might throw it. Oh, except for RuntimeException, and its descendants such as NullPointerException. Blech. This … Continue reading Sheer Evil: Rethrowing exceptions in Java