Security issue about SQL injection attacks

[vunguyendhSTS]

Hi team

my application scanned by security team and we got issue about SQL injection attacks with description:

io/agora/utils/SqliteWrapper.java :

this.db.execSQL("delete from "" + str + "" where key = "" + str2 + "";");

When i'm trying to view actually happens inside SqliteWrapper.java by import io.agora.utils.moduleName then i just see 3 moduleName are:
NetUtils
ThreadUtils
HttpRequest

my question is where the SQL command is and how can i view it and fix with parameter the SQL