diff --git a/WHATSNEW b/WHATSNEW
index a3480c618..b3935d3e6 100644
--- a/WHATSNEW
+++ b/WHATSNEW
@@ -41,6 +41,10 @@ Fixed bugs:
    certain circumstances.
    Bugzilla Report 49296.
 
+ * <junit> will now produce better diagnostics when it fails to delete
+   a temporary file.
+   Bugzilla Report 49419.
+
 Other changes:
 --------------
 
diff --git a/src/main/org/apache/tools/ant/taskdefs/optional/junit/JUnitTask.java b/src/main/org/apache/tools/ant/taskdefs/optional/junit/JUnitTask.java
index d7d12a2c3..32e260652 100644
--- a/src/main/org/apache/tools/ant/taskdefs/optional/junit/JUnitTask.java
+++ b/src/main/org/apache/tools/ant/taskdefs/optional/junit/JUnitTask.java
@@ -1055,7 +1055,8 @@ public class JUnitTask extends Task {
 
             if (!FILE_UTILS.tryHardToDelete(propsFile)) {
                 throw new BuildException("Could not delete temporary "
-                                         + "properties file.");
+                                         + "properties file '"
+                                         + propsFile.getAbsolutePath() + "'.");
             }
         }