add toString method
diff --git a/lucene/replicator/src/java/org/apache/lucene/replicator/nrt/FileMetaData.java b/lucene/replicator/src/java/org/apache/lucene/replicator/nrt/FileMetaData.java
index ac3e1f0..5d63a8c 100644
--- a/lucene/replicator/src/java/org/apache/lucene/replicator/nrt/FileMetaData.java
+++ b/lucene/replicator/src/java/org/apache/lucene/replicator/nrt/FileMetaData.java
@@ -38,5 +38,10 @@
     this.length = length;
     this.checksum = checksum;
   }
+
+  @Override
+  public String toString() {
+    return "FileMetaData(length=" + length + ")";
+  }
 }