diff --git a/querydsl-lucene/src/main/java/com/mysema/query/lucene/session/LuceneSessionFactory.java b/querydsl-lucene/src/main/java/com/mysema/query/lucene/session/LuceneSessionFactory.java
index 70a90394d..b211fbdba 100644
--- a/querydsl-lucene/src/main/java/com/mysema/query/lucene/session/LuceneSessionFactory.java
+++ b/querydsl-lucene/src/main/java/com/mysema/query/lucene/session/LuceneSessionFactory.java
@@ -3,6 +3,7 @@ package com.mysema.query.lucene.session;
 public interface LuceneSessionFactory {
 
     LuceneSession getCurrentSession();
+    
     LuceneSession openSession(boolean readOnly);
     
 }
diff --git a/querydsl-lucene/src/main/java/com/mysema/query/lucene/session/LuceneSessionFactoryImpl.java b/querydsl-lucene/src/main/java/com/mysema/query/lucene/session/LuceneSessionFactoryImpl.java
index beedb33f4..99ac11627 100644
--- a/querydsl-lucene/src/main/java/com/mysema/query/lucene/session/LuceneSessionFactoryImpl.java
+++ b/querydsl-lucene/src/main/java/com/mysema/query/lucene/session/LuceneSessionFactoryImpl.java
@@ -18,9 +18,9 @@ import com.mysema.query.QueryException;
 
 public class LuceneSessionFactoryImpl implements LuceneSessionFactory {
 
-    private final Logger logger = LoggerFactory.getLogger(LuceneSessionFactoryImpl.class);
+    private static final Logger logger = LoggerFactory.getLogger(LuceneSessionFactoryImpl.class);
 
-    private Directory directory;
+    private final Directory directory;
 
     private final AtomicReference<IndexSearcher> searcher = new AtomicReference<IndexSearcher>();
 
diff --git a/querydsl-lucene/src/main/java/com/mysema/query/lucene/session/LuceneSessionImpl.java b/querydsl-lucene/src/main/java/com/mysema/query/lucene/session/LuceneSessionImpl.java
index ab8cb1aae..9c1804c46 100644
--- a/querydsl-lucene/src/main/java/com/mysema/query/lucene/session/LuceneSessionImpl.java
+++ b/querydsl-lucene/src/main/java/com/mysema/query/lucene/session/LuceneSessionImpl.java
@@ -9,17 +9,17 @@ import com.mysema.query.lucene.LuceneSerializer;
 
 public class LuceneSessionImpl implements LuceneSession {
 
-    private boolean readOnly;
+    private final boolean readOnly;
     
     private boolean closed = false;
 
-    private LuceneSessionFactoryImpl sessionFactory;
+    private final LuceneSessionFactoryImpl sessionFactory;
 
     private IndexSearcher searcher;
     
     private IndexWriter writer;
 
-    private LuceneSerializer serializer = new LuceneSerializer(true, true);
+    private final LuceneSerializer serializer = new LuceneSerializer(true, true);
 
     public LuceneSessionImpl(LuceneSessionFactoryImpl sessionFactory,
                              boolean readOnly) {