GWT 2.2

Finally I upgraded to GWT 2.2. But not without adventures.
Firstly, I had to download new version of GIN (snapshot), the current is not liked by GWT 2.2 compiler.
Secondly, this new version of GIN works only with the new version of GUICE (3.0) and some additional jars are necessary.
Thirdly, this way I was forced also to upgrade the server code to GUICE 3.0.
Fourthly, GUICE 3.0 lost from its internals @Nullable annotation. I spent several hours trying to guess what was going on. Finally I ended up with mysterious Guava project and jsr305.jar. I was told that is was my mistake to reference Nullable annotation from GUICE internal. Hm..., ok.
But finnaly I'm the happy consumer of GWT 2.2. GWT2.1 to GWT 2.2, one small step for a humble man like me, but giant leap for mankind.