diff --git a/src/main/java/eu/hbp/mip/akka/ExperimentActor.java b/src/main/java/eu/hbp/mip/akka/ExperimentActor.java
index 270af74d13f73dc67a9f7ac1e7733721148d0d95..2c70cfb1b0a936957c6f19f697e0bbd23e54be88 100644
--- a/src/main/java/eu/hbp/mip/akka/ExperimentActor.java
+++ b/src/main/java/eu/hbp/mip/akka/ExperimentActor.java
@@ -26,7 +26,7 @@ public class ExperimentActor extends UntypedActor {
     @Autowired
     private ExperimentRepository experimentRepository;
 
-    LoggingAdapter log = Logging.getLogger(getContext().system(), this);
+    private LoggingAdapter log = Logging.getLogger(getContext().system(), this);
 
 
     @Override
diff --git a/src/main/java/eu/hbp/mip/configuration/AkkaConfiguration.java b/src/main/java/eu/hbp/mip/configuration/AkkaConfiguration.java
index 67320795a5d9790c04d9381f9171dbaca20e7187..715eafc6bcf39c1962d9aedda03817660fc66c9c 100644
--- a/src/main/java/eu/hbp/mip/configuration/AkkaConfiguration.java
+++ b/src/main/java/eu/hbp/mip/configuration/AkkaConfiguration.java
@@ -37,7 +37,8 @@ class AkkaConfiguration {
         return system;
     }
 
-    @Bean String wokenRefPath() {
+    @Bean
+    public String wokenRefPath() {
         return "akka.tcp://woken@"+wokenHost+":"+wokenPort+wokenPath;
     }
 
diff --git a/src/main/java/eu/hbp/mip/configuration/SecurityConfiguration.java b/src/main/java/eu/hbp/mip/configuration/SecurityConfiguration.java
index c7366da49d325bf988e285a58abfacea6e3a5b24..717c5097c48fe2d86dc9e48591ddaec64dc4ed14 100644
--- a/src/main/java/eu/hbp/mip/configuration/SecurityConfiguration.java
+++ b/src/main/java/eu/hbp/mip/configuration/SecurityConfiguration.java
@@ -161,13 +161,13 @@ public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
 
     @Bean(name="hbp")
     @ConfigurationProperties("hbp.client")
-    OAuth2ProtectedResourceDetails hbp() {
+    public OAuth2ProtectedResourceDetails hbp() {
         return new AuthorizationCodeResourceDetails();
     }
 
     @Bean(name="hbpResource")
     @ConfigurationProperties("hbp.resource")
-    ResourceServerProperties hbpResource() {
+    public ResourceServerProperties hbpResource() {
         return new ResourceServerProperties();
     }