[tikv][cdcclient] The NPE error occurs in CDCClient

[leonardBang]

Bug Report

1. Describe the bug

When I use CDCClient#handleErrorEvent, the method CDCClient#getMinResolvedTs and CDCClient#getMaxResolvedTs occurs NPE error.

2. Minimal reproduce step (Required)

Start a CDCClient and then consume the change events.

3. What did you see instead (Required)

4. What did you expect to see? (Required)

I‘ll open a PR to fix this issue

5. What is your Java Client and TiKV version? (Required)

• Client Java: 3.2.0-SNAPSHOT
• TiKV:

[zz-jason]

@leonardBang thanks for your bug report. seems like you are willing to fix it on your own, do you have any plan to fix it recently?

[leonardBang]

@zz-jason I'd like to fix it this week.

[github-actions[bot]]

This issue is stale because it has been open 30 days with no activity.