Moritz Halbritter 497bbf9c2d Revise synchronized blocks
- Replace synchronized with Lock when guarding long-running operations
- Remove unnecessary synchronization in FileSystemWatcher
- Replace HashMap with ConcurrentHashMap in Restarter
- Remove unnecessary locking on AtomicBoolean in
  SpringApplicationBuilder
- Remove unnecessary locking in SimpleFormatter

Closes gh-36670
2023-08-03 09:23:46 +02:00
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2023-08-03 09:23:46 +02:00