Diagnosing NoClassDefFoundError: A Static Initialization Pitfall

A production alert came in at midnight while the on-call engineer was asleep. After connecting to the environment, it became clear that one microservice was experiencing a steady increase in file descriptor usage, eventually leading to an OutOfMemoryError and service crash. This microservice establishes SSH connections during operation, and sin ...

Posted on Wed, 17 Jun 2026 17:35:17 +0000 by zeberdeee