Jay's code playground

Usage

cd to main folder: java-playground, so far contains the following demos:

• JDK 21 / 22 / 23 / 25 and spring boot 3.5.x
• JDK new features:
  • native memory access
  • vector calculation
  • record
  • virtual thread
  • string templates
  • unnamed variables
  • scoped value
• eclipselink JPA
• sharding sphere
• openapi with swagger UI
• websocket with SockJS (enabled if jakarta.websocket.WebSocketContainer on classpath)
• open feign
• quartz
• easyexcel
• jmdns
• skywalking tracing, log
• maven docker build task
• eth RPC client
• a wolfram client
• spring boot client, a spring boot server docker image can be found here
• jmh performance test
• jasypt-spring integration using my another project
• a openai client using my another project
• AWS lambda function demo
• zstd-jni lib
• Spring AI
  • deepseek
  • milvus vector db on zilliz
  • mcp server / client with a weather service under mcp project (run with mvn spring-boot:run -DskipTests)
• http2
• http3 (enable by set http3.enabled property to true under http3 project)

run:

cd java-playground
mvn spring-boot:run -DskipTests # use mysql as datasource, or
mvn spring-boot:run -DskipTests -Dspring-boot.run.profiles=embedded # use in memory db as ds