diff --git a/pom.xml b/pom.xml
index 8f39405b..88b02d79 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,7 +12,7 @@
   <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
-    <version>2.3.7.RELEASE</version>
+    <version>2.6.15</version>
   </parent>
 
   <packaging>jar</packaging>
@@ -23,9 +23,6 @@
     <revision>${sebserver-version}</revision>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-    
-    <!-- Fix CVE-2021-44228 : https://spring.io/blog/2021/12/10/log4j2-vulnerability-and-spring-boot -->
-    <log4j2.version>2.17.0</log4j2.version> 
   </properties>
 
 
@@ -34,12 +31,12 @@
     to support the Jenkins build on CI-Server that still no Java 11 installed -->
   <profiles>
     <profile>
-      <id>Java 11</id>
+      <id>Java 17</id>
       <activation>
         <activeByDefault>true</activeByDefault>
       </activation>
       <properties>
-        <java.version>11</java.version>
+        <java.version>17</java.version>
       </properties>
       <build>
         <finalName>${project.artifactId}-${build-version}</finalName>
@@ -248,7 +245,7 @@
     <dependency>
       <groupId>com.github.pagehelper</groupId>
       <artifactId>pagehelper-spring-boot-starter</artifactId>
-      <version>1.2.10</version>
+      <version>1.4.6</version>
     </dependency>
 
     <!-- Spring / Spring Boot -->
diff --git a/src/main/java/ch/ethz/seb/sebserver/WebSecurityConfig.java b/src/main/java/ch/ethz/seb/sebserver/WebSecurityConfig.java
index c2b5d8f4..d627365a 100644
--- a/src/main/java/ch/ethz/seb/sebserver/WebSecurityConfig.java
+++ b/src/main/java/ch/ethz/seb/sebserver/WebSecurityConfig.java
@@ -100,8 +100,4 @@ public class WebSecurityConfig extends WebSecurityConfigurerAdapter implements E
         response.flushBuffer();
     }
 
-    @Override
-    public String getErrorPath() {
-        return ERROR_PATH;
-    }
 }
diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/WebserviceConfig.java b/src/main/java/ch/ethz/seb/sebserver/webservice/WebserviceConfig.java
index 7055077c..6a17b4ef 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/WebserviceConfig.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/WebserviceConfig.java
@@ -8,14 +8,18 @@
 
 package ch.ethz.seb.sebserver.webservice;
 
+import javax.sql.DataSource;
+
 import org.cryptonode.jncryptor.AES256JNCryptor;
 import org.cryptonode.jncryptor.JNCryptor;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Lazy;
+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;
 
 @Configuration
 @WebServiceProfile
@@ -29,6 +33,11 @@ public class WebserviceConfig {
         return aes256jnCryptor;
     }
 
+    @Bean
+    public TokenStore tokenStore(final DataSource dataSource) {
+        return new CachableJdbcTokenStore(dataSource);
+    }
+
 //  @Bean
 //  public WebServerFactoryCustomizer<TomcatServletWebServerFactory> tomcatCustomizer() {
 //      return (tomcat) -> tomcat.addConnectorCustomizers((connector) -> {
diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/WebServiceSecurityConfig.java b/src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/WebServiceSecurityConfig.java
index 4048e476..826cbfa7 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/WebServiceSecurityConfig.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/WebServiceSecurityConfig.java
@@ -12,7 +12,6 @@ import java.io.IOException;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
-import javax.sql.DataSource;
 
 import org.apache.catalina.filters.RemoteIpFilter;
 import org.slf4j.Logger;
@@ -24,7 +23,6 @@ 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;
@@ -47,7 +45,6 @@ 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.PreAuthProvider;
 import ch.ethz.seb.sebserver.webservice.weblayer.oauth.WebClientDetailsService;
 import ch.ethz.seb.sebserver.webservice.weblayer.oauth.WebserviceResourceConfiguration;
@@ -107,12 +104,6 @@ public class WebServiceSecurityConfig extends WebSecurityConfigurerAdapter {
     @Value("${sebserver.webservice.api.exam.accessTokenValiditySeconds:43200}")
     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
      *