diff --git a/contrib/db/bdb/src/java/org/apache/lucene/store/db/DbDirectory.java b/contrib/db/bdb/src/java/org/apache/lucene/store/db/DbDirectory.java
index 814fac12df7..f1abdaa15ce 100644
--- a/contrib/db/bdb/src/java/org/apache/lucene/store/db/DbDirectory.java
+++ b/contrib/db/bdb/src/java/org/apache/lucene/store/db/DbDirectory.java
@@ -168,7 +168,7 @@ public class DbDirectory extends Directory {
         try {
             try {
                 DatabaseEntry key = new DatabaseEntry(new byte[0]);
-                DatabaseEntry data = new DatabaseEntry(null);
+                DatabaseEntry data = new DatabaseEntry((byte[]) null);
 
                 data.setPartial(true);
 
diff --git a/contrib/db/bdb/src/java/org/apache/lucene/store/db/File.java b/contrib/db/bdb/src/java/org/apache/lucene/store/db/File.java
index 8a9dc8053b2..75c79e9b99e 100644
--- a/contrib/db/bdb/src/java/org/apache/lucene/store/db/File.java
+++ b/contrib/db/bdb/src/java/org/apache/lucene/store/db/File.java
@@ -65,7 +65,7 @@ public class File extends Object {
             else
             {
                 DatabaseEntry key = new DatabaseEntry(new byte[24]);
-                DatabaseEntry data = new DatabaseEntry(null);
+                DatabaseEntry data = new DatabaseEntry((byte[]) null);
                 Db blocks = directory.blocks;
                 DbTxn txn = directory.txn;
                 int flags = directory.flags;
@@ -201,7 +201,7 @@ public class File extends Object {
                 int ulen = bytes.length + 8;
                 byte[] cursorBytes = new byte[ulen];
                 DatabaseEntry cursorKey = new DatabaseEntry(cursorBytes);
-                DatabaseEntry cursorData = new DatabaseEntry(null);
+                DatabaseEntry cursorData = new DatabaseEntry((byte[]) null);
                 Db files = directory.files;
                 Db blocks = directory.blocks;
                 DbTxn txn = directory.txn;