Postgres driver converting null bind values to Byte array

The query works perfectly fine when the value of the bind variable gets resolved to some value but fails with the below exception when the same bind value gets resolved to null from the java application.

Exception:

The value of the bind variable is sent as String from the application and the Datatype of the corresponding Column is Text.

Here are the version details.

1. JAVA:  11

2. Postgres Driver: postgresql-42.3.5.jar

3. Server: Aurora Postgres 13.2

4. Executing a prepared statement with Bind values resolved at  runtime.

Could you please let me know if there is any property available on the Postgres driver which can be configured to avoid converting null object values to Byte array?

Appreciate your help.

Thank you.