Release Apache SkyWalking Java Agent 9.1.0

Release Apache SkyWalking Java Agent 9.1.0.

SkyWalking Java Agent 9.1.0 is released. Go to downloads page to find release tars. Changes by Version


  • Fix hbase onConstruct NPE in the file configuration scenario
  • Fix the issue of createSpan failure caused by invalid request URL in HttpClient 4.x/5.x plugin
  • Optimize ElasticSearch 6.x 7.x plugin compatibility
  • Fix an issue with the httpasyncclient component where the isError state is incorrect.
  • Support customization for the length limitation of string configurations
  • Add max length configurations in agent.config file for service_name and instance_name
  • Optimize spring-cloud-gateway 2.1.x, 3.x witness class.
  • Support report MongoDB instance info in Mongodb 4.x plugin.
  • To compatible upper and lower case Oracle TNS url parse.
  • Support collecting ZGC memory pool metrics. Require OAP 9.7.0 to support these new metrics.
  • Upgrade netty-codec-http2 to 4.1.100.Final
  • Add a netty-http 4.1.x plugin to trace HTTP requests.
  • Fix Impala Jdbc URL (including schema without properties) parsing exception.
  • Optimize byte-buddy type description performance.
  • Add eclipse-temurin:21-jre as another base image.
  • Bump byte-buddy to 1.14.9 for JDK21 support.
  • Add JDK21 plugin tests for Spring 6.
  • Bump Lombok to 1.18.30 to adopt JDK21 compiling.
  • Fix PostgreSQL Jdbc URL parsing exception.
  • Bump up grpc version.
  • Optimize plugin selector logic.


  • Fix JDK requirement in the compiling docs.
  • Add JDK21 support in the compiling docs.

All issues and pull requests are here