* [maven-release-plugin] prepare release v8.3.0

* [maven-release-plugin] prepare for next development iteration

* support spring-kafka 1.3.x and add test

* add spring-kafka-1.3.x-scenario to github workflow

* change kafka-plugin FAQ

* add supported versions

* update CHANGES.md

* [maven-release-plugin] prepare release v8.2.0

* [maven-release-plugin] prepare for next development iteration

Fix duplicate ExitSpan, Maybe this will cause some error message not recorded. because "feign load balance" mechanism will retry execute. (#5667)

* resttemplate plugin concurrency scenario data mistake problem 

* Fix JdkObsolete issue

* Fix code style
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

* Upgrade dependencies and make the JDK11 compiling passed.

* Update license and fix license check file.

* Add CI for JDK11 compiling.

* Update doc.

* Move spring webflux into optional plugin

* Fix compile check

* Fix check style

* Adjust code

* add docs

* Update docs/en/setup/service-agent/java-agent/README.md
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

Support @KafkaPollAndInvoke annotation to replace @Trace when just using the Kafka scenario agent plugin (#5304)

* [maven-release-plugin] prepare release v8.1.0

* [maven-release-plugin] prepare for next development iteration

* [maven-release-plugin] prepare release v8.0.0

* [maven-release-plugin] prepare for next development iteration

* Remove all shardingsphere cases.

Here are the list of changes we made in this pull request. Top 3 are the principle changes, others are following these principles.
1. New agent and mesh report protocol. 
2. New agent header protocol. 
3. Service register, instance register and network address register have been removed permanently.
4. Service traffic, instance traffic and network alias metrics are added to replace the service, instance and network address inventory.
5. Register process has been removed.
6. Metrics stream process supports insert only mode, especially for traffic entities.
7. Metrics stream process supports no-downsampling mode for traffic entities and network alias.
8. Remove all register mechanism and cache in the java agent.
9. Remove MONTH step in GraphQL query.
10. Update UI to remove MONTH step query, the max query range is 60 days now.
11. Simplify the TTL to metrics and record. And the unit has been formatted in Day unit. No specific TTL for ElasticSearch storage.
12. Buffer mechanism of trace receiver and mesh receiver has been removed due to no register.
13. New service id, instance id and endpoint id rules, including service relation, instance relation and endpoint relation id rules.
14. Java agent support `keep tracing` mode, meaning, agent generating tracing context even the backend is unconnected/unavailable.
15. Plugin test tool up to date, in order to support new protocol.
16. Plugin tests expected data files updated.
17. E2E tests updated.
18. Telemetry of Grafana config has been merged into one.
19. Documentation updates.
20. [TBD] InfluxDB storage implementation is not available, need @dmsolr to fix later, in order to reduce the master change block by this PR.

* Provide active HTTP parameter collection automatically in the profiling context

* Fix style check

* fix style error

* Add profile status, storage it into TracingContext. simplify to get profiling method

* Change the profile status field name in TracingContext

* Replace gone images

* resolve issues

* resole description issues
Co-authored-by: NMrproliu <mrproliu@lagou.com>
Co-authored-by: Nkezhenxu94 <kezhenxu94@163.com>

* [maven-release-plugin] prepare release v7.0.0

* [maven-release-plugin] prepare for next development iteration

* ClassCastException

* resttemplate 4.x scenario

* add support versions & fix expectedData format-
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

Motivation:

Review code styles with some bots automatically.

Modifications:

Set up ReviewDog in GitHub Action to review code style.

Add more check rules to checkstyle plugin.

Result:

Obvious code styles can be reviewed and commented automatically.

* Split the `collect_http_params` as per plugins for better performance

* Add missing change

Plugins of Tomcat, Spring MVC, Armeria are supported for now

* Move Webflux plugin into default list.

* Fix a typo.

* [maven-release-plugin] prepare release v6.6.0

* [maven-release-plugin] prepare for next development iteration

* webflux-reactive

* add support version comment, modify gateway

* add test case, modify name

* add docs

* remove healthCheck

* Remove the local span and exit span register mechanism in Java agent scenario.

* Fix config, plugin, and document, as exit span is not required register anymore.

* Try to fix the test case expected data due to no register for exit span.

* Fix toolkit case.

* Remove exit span from plugin test framework document.

* Update protocol, FAQ, and CHANGELOG documents to highlight this change.

* Fix NPE when no entry span in the whole segment. Set endpoint to null in segment entity.

* Fix the snapshot and add inexistence operation name id.

* Fix several async cases.

* Fix undertow test case.

* Fix wrong error log name.

* Keep name consistent with 6.x concepts.

* Try to fix 3 async scenarios.

* Fix okhttp case.

* Fix Spring Async case.

* Fix another NPE

* Fix NPE when first span has no endpoint id when it is local or exit span.

* Still fill first operation name when no endpoint id.