Issue #139: Generate @nonnull for required fields

Signed-off-by: Jonah Graham <[email protected]>

Author: jonahgraham

org.eclipse.lsp4j.debug/README.md

@@ -5,7 +5,7 @@
 
 ```
 $ git clone [email protected]:jonahkichwacoders/vscode-debugadapter-node.git
-$ git checkout 223ec4d35edc91cb88a9ddb8b495cd79b1155c81 # (on dsp branch)
+$ git checkout 921a0091c504397e6fc4cae3acce1c73e50152e0 # (on dsp branch)
 $ npm install
 $ npm run compile
 $ # generate java and xtend files to default location