diff --git a/broker/src/main/java/org/dna/mqtt/moquette/messaging/spi/impl/DebugUtils.java b/broker/src/main/java/org/dna/mqtt/moquette/messaging/spi/impl/DebugUtils.java
new file mode 100644
index 00000000..a0703bfd
--- /dev/null
+++ b/broker/src/main/java/org/dna/mqtt/moquette/messaging/spi/impl/DebugUtils.java
@@ -0,0 +1,17 @@
+package org.dna.mqtt.moquette.messaging.spi.impl;
+
+import java.nio.ByteBuffer;
+
+/**
+ *
+ * @author andrea
+ */
+class DebugUtils {
+    static String  payload2Str(ByteBuffer content) {
+        byte[] b = new byte[content.remaining()];
+        content.mark();
+        content.get(b);
+        content.reset();
+        return new String(b);
+    } 
+}