diff --git a/as2-lib/src/main/java/com/helger/as2lib/crypto/MIC.java b/as2-lib/src/main/java/com/helger/as2lib/crypto/MIC.java
index e2339e13..be89b4f7 100644
--- a/as2-lib/src/main/java/com/helger/as2lib/crypto/MIC.java
+++ b/as2-lib/src/main/java/com/helger/as2lib/crypto/MIC.java
@@ -181,7 +181,7 @@ public static MIC parse (@Nullable final String sMIC)
     final String sMICBytes = st.nextToken ();
     final byte [] aMICBytes = Base64.safeDecode (sMICBytes);
     if (aMICBytes == null)
-      throw new IllegalArgumentException ("Failed to base64 decode '" + sMICBytes + "'");
+      throw new IllegalArgumentException ("Failed to base64 decode MIC '" + sMICBytes + "'");
 
     if (!st.hasMoreTokens ())
       throw new IllegalArgumentException ("Separator after Base64 bytes is missing");
diff --git a/as2-lib/src/main/java/com/helger/as2lib/processor/sender/AS2SenderModule.java b/as2-lib/src/main/java/com/helger/as2lib/processor/sender/AS2SenderModule.java
index 1ea10359..0a993b30 100644
--- a/as2-lib/src/main/java/com/helger/as2lib/processor/sender/AS2SenderModule.java
+++ b/as2-lib/src/main/java/com/helger/as2lib/processor/sender/AS2SenderModule.java
@@ -769,7 +769,7 @@ protected void receiveSyncMDN (@Nonnull final AS2Message aMsg,
       final String sDisposition = aMDN.attrs ().getAsString (AS2MessageMDN.MDNA_DISPOSITION);
 
       if (LOGGER.isInfoEnabled ())
-        LOGGER.info ("received MDN [" + sDisposition + "]" + aMsg.getLoggingText ());
+        LOGGER.info ("Received synchronous AS2 MDN [" + sDisposition + "]" + aMsg.getLoggingText ());
 
       // Asynch MDN 2007-03-12
       // Verify if the original mic is equal to the mic in returned MDN
diff --git a/as2-lib/src/test/java/com/helger/as2lib/supplementary/main/MainSendToLocalhost8080.java b/as2-lib/src/test/java/com/helger/as2lib/supplementary/main/MainSendToLocalhost8080.java
index d4d3978f..03eeea28 100644
--- a/as2-lib/src/test/java/com/helger/as2lib/supplementary/main/MainSendToLocalhost8080.java
+++ b/as2-lib/src/test/java/com/helger/as2lib/supplementary/main/MainSendToLocalhost8080.java
@@ -101,7 +101,6 @@ public static void main (final String [] args) throws Exception
     // When a signed message is used, the algorithm for MIC and message must be
     // identical
     final ECryptoAlgorithmSign eSignAlgo = ECryptoAlgorithmSign.DIGEST_SHA_256;
-    // CBC works, GCM is not supported
     final ECryptoAlgorithmCrypt eCryptAlgo = ECryptoAlgorithmCrypt.CRYPT_AES128_GCM;
     final ECompressionType eCompress = ECompressionType.ZLIB;
     final boolean bCompressBeforeSigning = AS2ClientSettings.DEFAULT_COMPRESS_BEFORE_SIGNING;