[solved]Making Grails app with Twitter authentication, using "spring-security-twitter" is not work well...

1-spring-security-twitter-is-not-work

# DevEnv

+ JDK 7 update 17
+ GGTS 3.2.0RELEASE
+ Grails 2.2.1

# Operations

1．Create Grails Project "test" 
2. Add to BuildConfig.groovy
 
    compile ":spring-security-core:1.2.7.3"

3. 'refresh-dependencies'
4. 's2-quickstart test Person Role'
5. Add to BuildConfig.groovy

    compile ":spring-security-twitter:0.4.4"

6. 'refresh-dependencies'
7. 's2-init-twitter' and set Consumer Key and Secret
8. Add to grails-app/views/login/auth.gsp

    <link rel="stylesheet" href="${resource(dir:'css',file:'twitter-auth.css')}" />

    <twitterAuth:button/>

9. 'run-app'
10. Access http://localhost:8080/test/login/auth
11. Click "Sign in with Twitter" and authentication
12. Call-backed my app(login succeeded)
13. 'exit'
----
14. Move TwitterUser.groovy to "test" package(use Refactor>Move in GGTS)
15. Set Config.groovy

    security.twitter.domain.classname = 'test.TwitterUser'

16. 'run-app'
17. Access and Twitter authentication, error has occurred

    Error 500: Internal Server Error
    URI
    /test/j_spring_twitter_security_check
    Class
    java.lang.NullPointerException
    Message
    Cannot get property 'clazz' on null object
    Around line 24 of DefaultConnectedTwitterAuthDao.groovy
    21:    String rolesPropertyName
    22:
    23:    TwitterUserDomain findUser(String username) {
    24:    	Class<?> User = grailsApplication.getDomainClass(domainClassName).clazz
    25:        def user = null
    26:        User.withTransaction { status ->
    27:            user = User.findWhere(screenName: username)
    Around line 28 of TwitterAuthProvider.groovy
    25:    Authentication authenticate(Authentication authentication) {
    26:        TwitterAuthToken token = authentication
    27:
    28:        TwitterUserDomain user = authDao.findUser(token.screenName)
    29:
    30:        if (user == null) {
    31:            if (!createNew) {
    Around line 67 of TwitterAuthFilter.groovy
    64:                    token: token.token
    65:            )
    66:            securityToken.authenticated = true
    67:            Authentication auth = getAuthenticationManager().authenticate(securityToken)
    68:            if (auth.authenticated) {
    69:                rememberMeServices.loginSuccess(request, response, auth)
    70:                log.info "Successful authentication"
    Trace
        Line | Method
    ->>   24 | findUser              in DefaultConnectedTwitterAuthDao.groovy
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
    |     28 | authenticate          in TwitterAuthProvider.groovy
    |     67 | attemptAuthentication in TwitterAuthFilter.groovy
    |   1145 | runWorker             in java.util.concurrent.ThreadPoolExecutor
    |    615 | run . . . . . . . . . in java.util.concurrent.ThreadPoolExecutor$Worker
    ^    722 | run                   in java.lang.Thread

18. Unset "security.twitter.domain.classname", same error occurred
19．Moving TwitterUser.groovy is cause? or "security.twitter.domain.classname" is not working...

2-solved-issue

- Key "security.twitter.domain.classname" is incorrect.
- This key is shown at http://grails.org/plugin/spring-security-twitter as default config.
- Fix this likely automatically added key "grails.plugins.springsecurity.twitter.app.consumerKey".
- "grails.plugins.springsecurity.twitter.domain.classname" is correct.
- And it works well!

- This issue has posted:-P https://github.com/splix/grails-spring-security-twitter/issues/10