fixes

src/main/java/ch/ethz/seb/sebserver/webservice/WebServiceInit.java

@@ -11,8 +11,6 @@ package ch.ethz.seb.sebserver.webservice;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 
-import javax.sql.DataSource;
-
 import org.cryptonode.jncryptor.AES256JNCryptor;
 import org.cryptonode.jncryptor.JNCryptor;
 import org.slf4j.Logger;
@@ -26,11 +24,9 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
 import org.springframework.context.annotation.Lazy;
 import org.springframework.core.env.Environment;
-import org.springframework.security.oauth2.provider.token.TokenStore;
 
 import ch.ethz.seb.sebserver.gbl.Constants;
 import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
-import ch.ethz.seb.sebserver.webservice.weblayer.oauth.CachableJdbcTokenStore;
 
 // TODO check if DataSourceAutoConfiguration and TokenStore bean definition is really needed here
 //      or if it is possible to move them to the WebServiceSecurityConfig.
@@ -70,12 +66,6 @@ public class WebServiceInit implements ApplicationListener<ApplicationReadyEvent
 
     }
 
-    @Lazy
-    @Bean
-    public TokenStore tokenStore(final DataSource dataSource) {
-        return new CachableJdbcTokenStore(dataSource);
-    }
-
     @Lazy
     @Bean
     public JNCryptor jnCryptor() {

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/dao/impl/ConfigurationDAOBatchService.java

@@ -22,6 +22,8 @@ import org.joda.time.DateTime;
 import org.joda.time.DateTimeZone;
 import org.mybatis.dynamic.sql.SqlBuilder;
 import org.mybatis.spring.SqlSessionTemplate;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Component;
@@ -60,6 +62,8 @@ import ch.ethz.seb.sebserver.webservice.servicelayer.dao.ResourceNotFoundExcepti
  * intensive write operation on Configuration domain. */
 class ConfigurationDAOBatchService {
 
+    private static final Logger log = LoggerFactory.getLogger(ConfigurationDAOBatchService.class);
+
     private final ConfigurationNodeRecordMapper batchConfigurationNodeRecordMapper;
     private final ConfigurationValueRecordMapper batchConfigurationValueRecordMapper;
     private final ConfigurationAttributeRecordMapper batchConfigurationAttributeRecordMapper;
@@ -70,6 +74,9 @@ class ConfigurationDAOBatchService {
     protected ConfigurationDAOBatchService(
             @Qualifier(BatisConfig.SQL_BATCH_SESSION_TEMPLATE) final SqlSessionTemplate batchSqlSessionTemplate) {
 
+        log.info("Registered MyBatis Mappers: {}",
+                batchSqlSessionTemplate.getConfiguration().getMapperRegistry().getMappers());
+
         this.batchConfigurationNodeRecordMapper =
                 batchSqlSessionTemplate.getMapper(ConfigurationNodeRecordMapper.class);
         this.batchConfigurationValueRecordMapper =

src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/WebServiceSecurityConfig.java

@@ -13,6 +13,7 @@ import java.io.IOException;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import javax.sql.DataSource;
 
 import org.apache.catalina.filters.RemoteIpFilter;
 import org.slf4j.Logger;
@@ -24,6 +25,7 @@ import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
+import org.springframework.context.annotation.Lazy;
 import org.springframework.core.annotation.Order;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
@@ -46,6 +48,7 @@ import org.springframework.security.web.AuthenticationEntryPoint;
 import ch.ethz.seb.sebserver.WebSecurityConfig;
 import ch.ethz.seb.sebserver.gbl.model.user.UserRole;
 import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
+import ch.ethz.seb.sebserver.webservice.weblayer.oauth.CachableJdbcTokenStore;
 import ch.ethz.seb.sebserver.webservice.weblayer.oauth.WebClientDetailsService;
 import ch.ethz.seb.sebserver.webservice.weblayer.oauth.WebserviceResourceConfiguration;
 
@@ -102,6 +105,12 @@ public class WebServiceSecurityConfig extends WebSecurityConfigurerAdapter {
     @Value("${sebserver.webservice.api.exam.accessTokenValiditySeconds:3600}")
     private Integer examAccessTokenValSec;
 
+    @Lazy
+    @Bean
+    public TokenStore tokenStore(final DataSource dataSource) {
+        return new CachableJdbcTokenStore(dataSource);
+    }
+
     /** Used to get real remote IP address by using "X-Forwarded-For" and "X-Forwarded-Proto" header.
      * https://tomcat.apache.org/tomcat-7.0-doc/api/org/apache/catalina/filters/RemoteIpFilter.html
      *