[RATIS-2180] Unified judgment object is not null

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.0.1
• Component/s: server
• Assignee: Unassigned
• Reporter: JiangHua Zhu
• Created: 29/Oct/24 09:54
• Updated: 30/Oct/24 17:58

Description

In Ratis, there are now two ways to check if an object is not null.
Use Preconditions.assertNotNull(). For example:

Preconditions.assertNotNull(getServerRpc(), "getServerRpc()");

Use Objects.requireNonNull(). For example:

Objects.requireNonNull(request, "request == null");

We should unify them.