diff --git a/api/src/main/java/de/fitko/fitconnect/api/services/metadata/MetadataService.java b/api/src/main/java/de/fitko/fitconnect/api/services/metadata/MetadataService.java
index fc9440f0706ae1441ba1cb4c67421f8ab930bcf9..a27af31d8c382f040840936d1ffcf2cf57a29a98 100644
--- a/api/src/main/java/de/fitko/fitconnect/api/services/metadata/MetadataService.java
+++ b/api/src/main/java/de/fitko/fitconnect/api/services/metadata/MetadataService.java
@@ -1,9 +1,8 @@
 package de.fitko.fitconnect.api.services.metadata;
 
-import com.nimbusds.jose.jwk.RSAKey;
 import de.fitko.fitconnect.api.domain.model.metadata.Metadata;
-import de.fitko.fitconnect.api.domain.model.metadata.data.Data;
 import de.fitko.fitconnect.api.domain.model.metadata.attachment.Attachment;
+import de.fitko.fitconnect.api.domain.model.metadata.data.Data;
 import de.fitko.fitconnect.api.domain.model.submission.Submission;
 
 import java.util.List;
@@ -18,7 +17,8 @@ import java.util.List;
 public interface MetadataService {
 
     /**
-     * Generates valid metadata for a submission including its JWE-encrypted data and attachments.
+     * Generates valid metadata for a submission including its JWE-encrypted data and attachments
+     * and uploads it to the Fit-Connect API
      *
      * @param data the actual data payload (json or xml)
      * @param attachments list of 0..n attachments as binary data
diff --git a/impl/src/main/java/de/fitko/fitconnect/impl/http/ProxyConfig.java b/impl/src/main/java/de/fitko/fitconnect/impl/http/ProxyConfig.java
index b39c1f97d023f4c6486c22a96dd3aa2dc139e497..8453fa02cea29815081cec704ede89c78349ce08 100644
--- a/impl/src/main/java/de/fitko/fitconnect/impl/http/ProxyConfig.java
+++ b/impl/src/main/java/de/fitko/fitconnect/impl/http/ProxyConfig.java
@@ -23,11 +23,11 @@ public class ProxyConfig {
 
     public RestTemplate proxyRestTemplate() {
         if (!hasProxySet()) {
-            logger.info("Using no proxy");
+            logger.info("no proxy configured");
             return new RestTemplate();
         }
 
-        logger.info("Using proxy {}", this);
+        logger.info("using proxy {}", this);
         var requestFactory = new SimpleClientHttpRequestFactory();
         var proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(host, port));
         requestFactory.setProxy(proxy);
diff --git a/impl/src/main/java/de/fitko/fitconnect/impl/http/ProxyRestTemplate.java b/impl/src/main/java/de/fitko/fitconnect/impl/http/ProxyRestTemplate.java
index 68ab56b21e60d29c57ccb74f702b39a7fbdce054..63abd231c8300ee49da17c27e9e7444ca45b7325 100644
--- a/impl/src/main/java/de/fitko/fitconnect/impl/http/ProxyRestTemplate.java
+++ b/impl/src/main/java/de/fitko/fitconnect/impl/http/ProxyRestTemplate.java
@@ -5,7 +5,7 @@ import org.springframework.web.client.RestTemplate;
 
 public class ProxyRestTemplate extends RestTemplate {
 
-    public ProxyRestTemplate(ClientHttpRequestFactory requestFactory) {
+    public ProxyRestTemplate(final ClientHttpRequestFactory requestFactory) {
         super(requestFactory);
         this.getMessageConverters().add(new X509CRLHttpMessageConverter());
     }