diff --git a/server/odc-service/src/main/java/com/oceanbase/odc/service/pldebug/session/DebuggerSession.java b/server/odc-service/src/main/java/com/oceanbase/odc/service/pldebug/session/DebuggerSession.java
index 2fcc67b2e3..8bcfdf9a85 100644
--- a/server/odc-service/src/main/java/com/oceanbase/odc/service/pldebug/session/DebuggerSession.java
+++ b/server/odc-service/src/main/java/com/oceanbase/odc/service/pldebug/session/DebuggerSession.java
@@ -179,7 +179,7 @@ public DebuggerSession(DebuggeeSession debuggeeSession, StartPLDebugReq req, boo
         }
     }
 
-    private static SingleConnectionDataSource cloneDataSource(SingleConnectionDataSource originDataSource) {
+    private SingleConnectionDataSource cloneDataSource(SingleConnectionDataSource originDataSource) {
         SingleConnectionDataSource debuggerDataSource = new SingleConnectionDataSource();
         debuggerDataSource.setUrl(originDataSource.getUrl());
         debuggerDataSource.setUsername(originDataSource.getUsername());