Sorted:

How can I optimize the code to always use the same reference to a String without increasing the memory usage?-Collection of common programming errors

Understanding the need for a DI framework-Collection of common programming errors

tomcat session not serializable for spring component with @Value injection-Collection of common programming errors

Howto deserialize class, if class version was changed-Collection of common programming errors

Ribbon Invalidate makes my outlook add-in crash-Collection of common programming errors

Runtime.exec doesn't do anything… (no errors)-Collection of common programming errors

How to use MEF to init a group of classes?-Collection of common programming errors

NullReferenceException from InitializeComponent on upgrading to WPF 4 w/ generic type arguments-Collection of common programming errors

wait until command is finished batch-Collection of common programming errors

Mock Objects in Play[2.0]-Collection of common programming errors