diff --git a/WHATSNEW b/WHATSNEW
index 882225dce..00de20e3e 100644
--- a/WHATSNEW
+++ b/WHATSNEW
@@ -250,6 +250,10 @@ Other changes:
    for a custom pattern.
    Bugzilla Report 50114.
 
+ * JUnit XMLResultAggregator logs the stack trace of caught IO exceptions
+   in verbose runs.
+   Bugzilla Report 48836.
+
 Changes from Ant 1.8.0 TO Ant 1.8.1 
 ===================================
 
diff --git a/src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLResultAggregator.java b/src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLResultAggregator.java
index 55674ccd8..a8edf1912 100644
--- a/src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLResultAggregator.java
+++ b/src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLResultAggregator.java
@@ -279,6 +279,8 @@ public class XMLResultAggregator extends Task implements XMLConstants {
             } catch (IOException e) {
                 log("Error while accessing file " + file + ": "
                     + e.getMessage(), Project.MSG_ERR);
+                log("Error while accessing file " + file + ": "
+                    + e.getMessage(), e, Project.MSG_VERBOSE);
             }
         }
         return rootElement;