Fixing the login bug

Decided you need some help? Here are some pointers.

Do you know yet where the error is coming from? What does the error message tell you?
”No AuthenticationProvider found for org.springframework.security.authentication.UsernamePasswordAuthenticationToken”
If it’s not obvious, this is thrown by Spring Security telling you the authentication process has not been set up correctly. The project is set up to use the plugin simple-users developed by DigInG that provides some common user management functionality that all our apps need.

Ok - I need more help (scroll down)

Have you check the documentation for simple-users to see if the app has been setup correctly?

Ok - I need more help

Check MvcConfig.java, PersistenceConfig.java, and RootConfig.java. Are there any simple-users references that might need fixing?

Tell me the solution, I give up.

How to fix it

The three files MvcConfig.java, PersistenceConfig.java, and RootConfig.java all load certain files from simple-users. However, there is a bug in the artifact generating the project that overwrites the correct root package of these references with the root package of the app we created. For example the line

@ComponentScan("my.project.simpleusers.web")

in MvcConfig.java references a package that does not exist. Instead it needs to point to the package simpleusers.web of the simple-users plugin. The correct code is:
@ComponentScan("edu.asu.diging.simpleusers.web")

If you read the documentation of simple-users, you find that exact line. It tells Spring to scan the package edu.asu.diging.simpleusers.web for any Spring components (e.g. controllers, services, etc).

In MvcConfig.java, there are other incorrect package references in the @EnableJpaRepositories annotation (simpleusers.core.data), and inside the entityManagerFactory method
em.setPackagesToScan(new String[] { "my.project.thymeleaf.core.model", "my.project.simpleusers.core.model" });

Lastly, there is another @ComponentScan in RootConfig.java that needs fixing:
@ComponentScan({"my.project.thymeleaf", "my.project.simpleusers.core"})

Once you replace my.project with edu.asu.diging in the correct places, you should be able to login.