Let toString() reflect subclass names.
diff --git a/log4j-server/src/main/java/org/apache/logging/log4j/server/InputStreamLogEventBridge.java b/log4j-server/src/main/java/org/apache/logging/log4j/server/InputStreamLogEventBridge.java
index 6d66303..71950f7 100644
--- a/log4j-server/src/main/java/org/apache/logging/log4j/server/InputStreamLogEventBridge.java
+++ b/log4j-server/src/main/java/org/apache/logging/log4j/server/InputStreamLogEventBridge.java
@@ -101,7 +101,7 @@
 
     @Override
     public String toString() {
-        return "InputStreamLogEventBridge [bufferSize=" + bufferSize + ", charset=" + charset + ", eventEndMarker="
+        return getClass().getName() + " [bufferSize=" + bufferSize + ", charset=" + charset + ", eventEndMarker="
                 + eventEndMarker + ", parser=" + parser + "]";
     }