[SPARK-36410] Replace anonymous classes with lambda expressions

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.3.0
• Component/s: Examples, Spark Core, SQL
• Assignee: Yang Jie
• Reporter: Yang Jie
• Created: 04/Aug/21 08:07
• Updated: 12/Dec/22 18:11
• Resolved: 09/Aug/21 10:29

Description

Anonymous classes can be replaced with lambda expressions in Java code, for example

before

new Thread(new Runnable() {
    @Override
    public void run() {
      // run thread
    }
  });

after

new Thread(() -> {
    // run thread
  });

Issue Links

• links to: [Github] Pull Request #33635 (LuciferYang)