[totalc]

From my defense software experience with Ada 83 and Ada 95, Ada's concurrency features made it much easier to work with than C. Tasks/processes were a top-level feature of the language, like classes in Java, and the "protected" keyword functioned somewhat like "synchronized" in Java (an implementation of the monitor pattern).

Our compiler package also came with an extensive concurrency API that offered a variety of threadsafe containers comparable (again) to java.concurrent - and this was software from the late 80s/early 90s!

What was bad about Ada was Ada 95. It strove to make Ada into an object-oriented language, but did a poor job of it with some very tortured syntax. edit what Masklinn said - "bolted on" is a perfect way to put it.