Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>
Co-authored-by: Nkezhenxu94 <kezhenxu94@163.com>

* add http client parameter collector
* Update CHANGES.md
Co-authored-by: Nkezhenxu94 <kezhenxu94@apache.org>
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

Add agent config `PROPERTIES_REPORT_PERIOD_FACTOR `, Avoid the instanceTraffic record properties is null. (#5688)

Fix application start duration log "Failed to load class org.slf4j.impl.StaticLoggerBinder." (#5678)

* Fix application start duration log "Failed to load class "org.slf4j.impl.StaticLoggerBinder"." when use kafka reporter. because kafka reporter use slf4j-api, but no implementor for slf4j.

* Polishing.

* Adapter slf4j Logger of agent used to skywalking agent Logger.

* Make the comments more accurate.
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

* 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>

Add Tomcat 9 install document for java agent (windows)
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>