core/src/main/java/de/fitko/fitconnect/core/auth/DefaultOAuthService.java

@@ -44,7 +44,7 @@ public class DefaultOAuthService implements OAuthService {
     }
 
     @Override
-    public synchronized OAuthToken getCurrentToken() throws RestApiException {
+    public OAuthToken getCurrentToken() throws RestApiException {
         if (tokenExpired()) {
             LOGGER.info("Current token is expired, authenticating ...");
             authenticate();

pom.xml

@@ -21,7 +21,7 @@
         <jwk-validator.version>1.0.0-SNAPSHOT</jwk-validator.version>
 
         <!-- 3rd party dependencies -->
-        <nimbus.version>9.24.3</nimbus.version>
+        <nimbus.version>9.24.4</nimbus.version>
         <jackson.version>2.13.4</jackson.version>
         <lombock.version>1.18.24</lombock.version>
         <logback.version>1.4.0</logback.version>
@@ -32,7 +32,7 @@
         <json-schema-validator.version>1.0.72</json-schema-validator.version>
 
         <junit.version>5.9.0</junit.version>
-        <mockito.version>4.7.0</mockito.version>
+        <mockito.version>4.8.0</mockito.version>
         <wiremock.version>2.27.2</wiremock.version>
         <hamcrest.version>1.3</hamcrest.version>
         <maven-compiler-plugin.version>3.10.1</maven-compiler-plugin.version>