[keycloak-user] Deploy providers

I have keycloak 2.5.4 I'm trying to figure out an example domain-extension. I registered provider using file-system. It didn't work. Not enough dependencies I registered provider using module. It is worked. I want to register a provider using deploy. I added jboss-deployment-structure.xml. I registered using deployer keycloak. Own custom SPI (ExampleSeviceImp) is not registered (I checked providers in tab server info). But tere is custom end point example registered. I execute add company and get NullPointerExeption because Own custom SPI is not registered.