Index: src/java/org/apache/lucene/store/SimpleFSLockFactory.java
===================================================================
--- src/java/org/apache/lucene/store/SimpleFSLockFactory.java	(revision 813015)
+++ src/java/org/apache/lucene/store/SimpleFSLockFactory.java	(working copy)
@@ -77,7 +77,7 @@
    * @param lockDirName where lock files should be created.
    */
   public SimpleFSLockFactory(String lockDirName) throws IOException {
-    lockDir = new File(lockDirName);
+    File lockDir = new File(lockDirName);
     setLockDir(lockDir);
   }
 
Index: src/test/org/apache/lucene/store/TestLockFactory.java
===================================================================
--- src/test/org/apache/lucene/store/TestLockFactory.java	(revision 813015)
+++ src/test/org/apache/lucene/store/TestLockFactory.java	(working copy)
@@ -259,6 +259,11 @@
         // Cleanup
         _TestUtil.rmDir(indexDirName);
     }
+    
+    public void testSimpleFSLockFactory() throws IOException {
+      // test string file instantiation
+      SimpleFSLockFactory factory = new SimpleFSLockFactory("test");
+    }
 
     // Verify: setDisableLocks works
     public void testDisableLocks() throws IOException {