Don't expect too much. I'm retired, but I have a lot of hobbies (including my plugins).
1. This is your AdvancedShapeGenerator-1.0 plugin.
It freeze but it became accessible after you cancel the ShapeGenerator. Some buttons work (like Shape Designer 2D).
I suggest to make it as a your new plugin.
2. This is AdvancedShapeGenerator-1.0 Eclipse folder.
Unpacked under your eclipse-workspace and import it.
3. Here is a PluginTemplate Eclipse folder. May be useful.