samdeepthink

Jun 25, 2026 · Fundamentals

Java SPI: From Parent Delegation to Dubbo Enhancements – What Interviewers Expect

The article explains Java SPI’s purpose, how the thread context class loader overcomes parent‑delegation limits, and compares the standard JDK SPI with the extended mechanisms used by Kafka Connect, Elasticsearch, Dubbo, and Spring Boot, providing interview‑ready insights and concrete code examples.