diff --git a/src/java/com/samskivert/depot/PersistenceContext.java b/src/java/com/samskivert/depot/PersistenceContext.java
index 311e12a..875ff97 100644
--- a/src/java/com/samskivert/depot/PersistenceContext.java
+++ b/src/java/com/samskivert/depot/PersistenceContext.java
@@ -37,10 +37,7 @@ import com.samskivert.util.StringUtil;
 
 import com.samskivert.jdbc.ConnectionProvider;
 import com.samskivert.jdbc.DatabaseLiaison;
-import com.samskivert.jdbc.HsqldbLiaison;
 import com.samskivert.jdbc.LiaisonRegistry;
-import com.samskivert.jdbc.MySQLLiaison;
-import com.samskivert.jdbc.PostgreSQLLiaison;
 
 import com.samskivert.depot.CacheAdapter.CacheCategory;
 import com.samskivert.depot.CacheAdapter.CachedValue;
@@ -48,12 +45,8 @@ import com.samskivert.depot.annotation.TableGenerator;
 import com.samskivert.depot.impl.DepotMarshaller;
 import com.samskivert.depot.impl.DepotMetaData;
 import com.samskivert.depot.impl.DepotTypes;
-import com.samskivert.depot.impl.HSQLBuilder;
 import com.samskivert.depot.impl.Modifier;
-import com.samskivert.depot.impl.MySQLBuilder;
 import com.samskivert.depot.impl.Operation;
-import com.samskivert.depot.impl.PostgreSQL4Builder;
-import com.samskivert.depot.impl.PostgreSQLBuilder;
 import com.samskivert.depot.impl.Query;
 import com.samskivert.depot.impl.SQLBuilder;
 
diff --git a/src/java/com/samskivert/depot/impl/DepotMarshaller.java b/src/java/com/samskivert/depot/impl/DepotMarshaller.java
index 110be11..83497e1 100644
--- a/src/java/com/samskivert/depot/impl/DepotMarshaller.java
+++ b/src/java/com/samskivert/depot/impl/DepotMarshaller.java
@@ -29,7 +29,6 @@ import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.ResultSetMetaData;
 import java.sql.SQLException;
-import java.sql.Statement;
 
 import java.util.List;
 import java.util.Map;