diff --git a/src/main/org/apache/tools/ant/taskdefs/optional/junit/JUnitTestRunner.java b/src/main/org/apache/tools/ant/taskdefs/optional/junit/JUnitTestRunner.java
index 11dbfbfd2..d5b458893 100644
--- a/src/main/org/apache/tools/ant/taskdefs/optional/junit/JUnitTestRunner.java
+++ b/src/main/org/apache/tools/ant/taskdefs/optional/junit/JUnitTestRunner.java
@@ -476,6 +476,7 @@ public class JUnitTestRunner implements TestListener, JUnitTaskMirror.JUnitTestR
                         }
                     } catch (ClassNotFoundException e) {
                         // OK, fall back to JUnit 3.
+                        savedErr.println("NOT found");
                     }
                     }
                     junit4 = junit4TestAdapterClass != null;