diff --git a/src/org/kar/archidata/dataAccess/DBAccessSQL.java b/src/org/kar/archidata/dataAccess/DBAccessSQL.java
index 15d5944..9e692cf 100644
--- a/src/org/kar/archidata/dataAccess/DBAccessSQL.java
+++ b/src/org/kar/archidata/dataAccess/DBAccessSQL.java
@@ -815,6 +815,9 @@ public class DBAccessSQL extends DBAccess {
 	@Override
 	@SuppressFBWarnings("SQL_PREPARED_STATEMENT_GENERATED_FROM_NONCONSTANT_STRING")
 	public <T> T insert(final T data, final QueryOption... option) throws Exception {
+		if (data == null) {
+			throw new DataAccessException("Try to check a null data ==> wrong API");
+		}
 		final Class<?> clazz = data.getClass();
 		final QueryOptions options = new QueryOptions(option);