diff --git a/lib/java/src/org/apache/thrift/transport/TSaslTransport.java b/lib/java/src/org/apache/thrift/transport/TSaslTransport.java
index 0c64850..b54746c 100644
--- a/lib/java/src/org/apache/thrift/transport/TSaslTransport.java
+++ b/lib/java/src/org/apache/thrift/transport/TSaslTransport.java
@@ -293,6 +293,7 @@
       }
     } catch (SaslException e) {
       try {
+        LOGGER.error("SASL negotiation failure", e);
         sendAndThrowMessage(NegotiationStatus.BAD, e.getMessage());
       } finally {
         underlyingTransport.close();