Question

I have play-framework application that uses one module which I’ve created by play new-module and then added it to the dependencies.yml to my app.

I’ve tested my module with play deps, play mymodule:hello from the app flolder – everything ok.

[myapplication —uses—> mymodule]

But when I try to compile that module by play gwt2:compile I have an error that application can not find/resolve classes from mymodule.

So why gwt can not compile my application if module is already resolved in the application?

P.S.
I use gwt2-1.7 plugin and the application works well if I don’t use any modules for it.

Answer 1

I have resolved this problem by fixing the gwt2-play plugin code. So added one line of code to the file devmode.py:

cp.append(os.path.normpath(os.path.join(application_path, 'lib/gwt-user.jar')))
cp.append(os.path.normpath(os.path.join(gwt2_module_dir, 'app')))
cp.append(os.path.normpath(os.path.join(gwt2_module_dir, 'hack')))
cp.append(os.path.normpath(os.path.join(application_path, 'app')))
#added by me
cp.append(app.readConf('gwt2.additional_classpath_entry'))

This enables us to specify additional classpath entries in application.conf. Like this:

gwt2.additional_classpath_entry = /home/me/projects/myproject/my_modules/my_module/app

and, this important: if we want to have dependency like this
[my_pplication] —uses–> [my_module]

and if we want to use classes from my_moudle in our gwt-services in the my_application, then we should make my_moudle to be gwt-module by play gwt2:init, play gwt2:create, and we should add these classes to while list like this:

package gwt.myproject.client;

import com.google.gwt.user.client.rpc.IsSerializable;
import gwt.mymodule.shared.MyModuleClass;

public class WhiteList implements IsSerializable {

    public MyModuleClass mymoduleObject;

}