TruffleSigtest

From APIDesign

API signature tests are part of Truffle project workflow since today! Let me describe what I have done, as similar changes are likely needed in any Java project that wants to use SignatureTests to keep backward compatibility of its APIs.

The Right Tool

First and foremost one needs to select a signature testing tool. As my background is related to NetBeans, my choice was almost guaranteed. I decided to use NetBeans APITest.

Slight problem was that the tool hasn't been updated to JDK8 language constructs (e.g. default and static methods in interfaces). However, as NetBeans need to use the tool as well, I got a great help from Tomáš Zezula. He is currently working on switching the NetBeans codebase to JDK8 and he updated the APITest to deal properly with JDK8 features (see here and here). It is always good to build on shoulders of giants - e.g. use a tool that a mature project like NetBeans maintains.