Fix possible ArgumentNullException when provider is unable to open a connection (#2794)

hazzik · web-flow · commit 23e3de245d47 · 2021-06-03T23:21:45.000+02:00
diff --git a/src/NHibernate/Tool/hbm2ddl/SchemaExport.cs b/src/NHibernate/Tool/hbm2ddl/SchemaExport.cs
@@ -468,7 +468,11 @@ private void InitConnectionAndExecute(Action<string> scriptAction, bool execute,
 			{
 				if (connectionProvider != null)
 				{
-					connectionProvider.CloseConnection(connection);
+					if (connection != null)
+					{
+						connectionProvider.CloseConnection(connection);
+					}
+
 					connectionProvider.Dispose();
 				}
 			}

Original file line number	Diff line number	Diff line change
`@@ -468,7 +468,11 @@ private void InitConnectionAndExecute(Action<string> scriptAction, bool execute,`
`468`	`468`	`{`
`469`	`469`	`if (connectionProvider != null)`
`470`	`470`	`{`
`471`		`- connectionProvider.CloseConnection(connection);`
	`471`	`+ if (connection != null)`
	`472`	`+ {`
	`473`	`+ connectionProvider.CloseConnection(connection);`
	`474`	`+ }`
	`475`	`+`
`472`	`476`	`connectionProvider.Dispose();`
`473`	`477`	`}`
`474`	`478`	`}`