diff --git a/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/CachingQueryMapper.java b/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/CachingQueryMapper.java
index 6aa893e..ffb5c52 100644
--- a/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/CachingQueryMapper.java
+++ b/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/CachingQueryMapper.java
@@ -157,11 +157,6 @@ public class CachingQueryMapper extends QueryMapper {
 		return super.toCollection(getPreparedStatement(sql), list, componentType, bindObjects);
 	}
 
-	@Override
-	public <T extends Map<K, E>, K, E> T toMap(String sql, final Class<T> returnType, Class<K> mapKeyType, Class<E> componentType, final Object... bindObjects) throws SQLException {
-		return super.toMap(getPreparedStatement(sql), returnType, mapKeyType, componentType, bindObjects);
-	}
-
 	@Override
 	public <T extends Map<K, E>, K, E> T toMap(String sql, T map, Class<K> mapKeyType, Class<E> componentType, final Object... bindObjects) throws SQLException {
 		return super.toMap(getPreparedStatement(sql), map, mapKeyType, componentType, bindObjects);
diff --git a/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/ListQueryMapper.java b/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/ListQueryMapper.java
index cab30bb..af1ca34 100644
--- a/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/ListQueryMapper.java
+++ b/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/ListQueryMapper.java
@@ -280,16 +280,6 @@ public class ListQueryMapper extends QueryMapper {
 		return delegate.toCollection(prepareSql(sql, bindObjects), list, componentType, bindObjects);
 	}
 
-	@Override
-	public <T extends Map<K, E>, K, E> T toMap(PreparedStatement ps, final Class<T> returnType, Class<K> mapKeyType, Class<E> componentType, final Object... bindObjects) throws SQLException {
-		return delegate.toMap(ps, returnType, mapKeyType, componentType, bindObjects);
-	}
-
-	@Override
-	public <T extends Map<K, E>, K, E> T toMap(String sql, final Class<T> returnType, Class<K> mapKeyType, Class<E> componentType, final Object... bindObjects) throws SQLException {
-		return delegate.toMap(prepareSql(sql, bindObjects), returnType, mapKeyType, componentType, bindObjects);
-	}
-
 	@Override
 	public <T extends Map<K, E>, K, E> T toMap(PreparedStatement ps, T map, Class<K> mapKeyType, Class<E> componentType, final Object... bindObjects) throws SQLException {
 		return delegate.toMap(ps, map, mapKeyType, componentType, bindObjects);
diff --git a/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/NullQueryMapper.java b/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/NullQueryMapper.java
index 786fd5f..a910fb0 100644
--- a/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/NullQueryMapper.java
+++ b/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/NullQueryMapper.java
@@ -337,26 +337,6 @@ public class NullQueryMapper extends QueryMapper {
 		return null;
 	}
 
-	@Override
-	public <T extends Map<K, E>, K, E> T toMap(PreparedStatement query, final Class<T> returnType, Class<K> mapKeyType, Class<E> componentType, final Object... bindObjects) {
-		try {
-			return delegate.toMap(query, returnType, mapKeyType, componentType, bindObjects);
-		} catch (Throwable e) {
-			if (verbose) e.printStackTrace();
-		}
-		return null;
-	}
-
-	@Override
-	public <T extends Map<K, E>, K, E> T toMap(String query, final Class<T> returnType, Class<K> mapKeyType, Class<E> componentType, final Object... bindObjects) {
-		try {
-			return delegate.toMap(query, returnType, mapKeyType, componentType, bindObjects);
-		} catch (Throwable e) {
-			if (verbose) e.printStackTrace();
-		}
-		return null;
-	}
-
 	@Override
 	public <T extends Map<K, E>, K, E> T toMap(PreparedStatement query, T map, Class<K> mapKeyType, Class<E> componentType, final Object... bindObjects) {
 		try {
diff --git a/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/QueryMapper.java b/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/QueryMapper.java
index 0fdfbc6..19f330f 100644
--- a/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/QueryMapper.java
+++ b/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/QueryMapper.java
@@ -420,20 +420,6 @@ public class QueryMapper implements Closeable {
 		}
 	}
 
-	public <T extends Map<K, E>, K, E> T toMap(PreparedStatement ps, final Class<T> returnType, Class<K> mapKeyType, Class<E> componentType, final Object... bindObjects) throws SQLException {
-		return cm.toMap(bindExecute(ps, bindObjects), returnType, mapKeyType, componentType);
-	}
-
-	public <T extends Map<K, E>, K, E> T toMap(String sql, final Class<T> returnType, Class<K> mapKeyType, Class<E> componentType, final Object... bindObjects) throws SQLException {
-		PreparedStatement ps = null;
-		try {
-			ps = conn.prepareStatement(sql);
-			return this.toMap(ps, returnType, mapKeyType, componentType, bindObjects);
-		} finally {
-			tryClose(ps);
-		}
-	}
-
 	public <T extends Map<K, E>, K, E> T toMap(PreparedStatement ps, T map, Class<K> mapKeyType, Class<E> componentType, final Object... bindObjects) throws SQLException {
 		return cm.toMap(bindExecute(ps, bindObjects), map, mapKeyType, componentType);
 	}
diff --git a/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/ResultSetMapper.java b/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/ResultSetMapper.java
index 2c55022..45c3ec1 100644
--- a/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/ResultSetMapper.java
+++ b/beehive-jdbc-mapper/src/main/java/com/moparisthebest/jdbc/ResultSetMapper.java
@@ -447,10 +447,6 @@ public class ResultSetMapper {
 		return privToCollection(rs, list, componentType, arrayMaxLength, cal, null);
 	}
 
-	public <T extends Map<K, E>, K, E> T toMap(ResultSet rs, final Class<T> returnType, Class<K> mapKeyType, Class<E> componentType, int arrayMaxLength, Calendar cal) {
-		return privToMap(rs, returnType, mapKeyType, componentType, arrayMaxLength, cal, null);
-	}
-
 	public <T extends Map<K, E>, K, E> T toMap(ResultSet rs, T map, Class<K> mapKeyType, Class<E> componentType, int arrayMaxLength, Calendar cal) {
 		return privToMap(rs, map, mapKeyType, componentType, arrayMaxLength, cal, null);
 	}
@@ -645,18 +641,6 @@ public class ResultSetMapper {
 		return this.toCollection(rs, list, componentType, arrayMaxLength, cal);
 	}
 
-	public <T extends Map<K, E>, K, E> T toMap(ResultSet rs, final Class<T> returnType, Class<K> mapKeyType, Class<E> componentType) {
-		return this.toMap(rs, returnType, mapKeyType, componentType, arrayMaxLength, cal);
-	}
-
-	public <T extends Map<K, E>, K, E> T toMap(ResultSet rs, final Class<T> returnType, Class<K> mapKeyType, Class<E> componentType, int arrayMaxLength) {
-		return this.toMap(rs, returnType, mapKeyType, componentType, arrayMaxLength, cal);
-	}
-
-	public <T extends Map<K, E>, K, E> T toMap(ResultSet rs, final Class<T> returnType, Class<K> mapKeyType, Class<E> componentType, Calendar cal) {
-		return this.toMap(rs, returnType, mapKeyType, componentType, arrayMaxLength, cal);
-	}
-
 	public <T extends Map<K, E>, K, E> T toMap(ResultSet rs, T map, Class<K> mapKeyType, Class<E> componentType) {
 		return this.toMap(rs, map, mapKeyType, componentType, arrayMaxLength, cal);
 	}