diff --git a/src/test/java/io/airlift/compress/v2/HadoopNative.java b/src/test/java/io/airlift/compress/v2/HadoopNative.java
index b9ee4124..44b01610 100644
--- a/src/test/java/io/airlift/compress/v2/HadoopNative.java
+++ b/src/test/java/io/airlift/compress/v2/HadoopNative.java
@@ -38,6 +38,7 @@ private HadoopNative() {}
 
     public static synchronized void requireHadoopNative()
     {
+        System.out.println("requireHadoopNative " + HadoopNative.class.getClassLoader());
         if (loaded) {
             return;
         }