* Provide Avro plugin
* provide testcase for avro-plugin
Co-authored-by: Nkezhenxu94 <kezhenxu94@163.com>

* sniffer processing profile task and report status and snapshot

* resolve testServiceDependencies test case error, use same register with `TraceSegmentServiceClient`

* resolve names

* change profile to single one thread run.

* 1. change to the ArrayList, because known the max size
2. rename issue resolved

* add profiling status enum

* change sniffer use full name issue

* 1. remove `prepareProfiling` method, build profiling status when construct `TracingContext`
2. add `TracingThreadListenerManager`, notify when tracing main thread finish
3. change ProfileThread start when process new profile task

* remove unnecessary getter

* add test assert error message

* adding `AgentServiceRule`

* revert original assert

* remove unnecessary getter

* resolve issues

* reduce findService invoke

* resolve style error

* recheck profiling when change first span operatin name

* resolve issues
1. remove `ContextManager#profilingRecheck`, only check on `TracingContext`
2. rename comments
3. resolve volatile array setting

* remove article link

* add `ProfileTask#maxSamplingCount` check

* resolve conflict (Downstream -> Commands)

* 1. change profilingSegmentSlots init on construct
2. if is profiling, recheck dont need to stop
3. total profiling count increment on first dump

* remove unused return val

* remove some `@param` and `@return`

* add profile task check result data bean

* change profiler slot to `AtomicReferenceArray`

* resolved java doc error

* fix doc error, remove meaningless descriptions

* resolve missed profile receiver on oap starter

* resolve method invoke error
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>
Co-authored-by: Nkezhenxu94 <kezhenxu94@163.com>

* Drop support of protocol v1 (sw3)

* Remove versioning logic further

* Remove more version5-only classes

* Commit missing files

* Update submodule and address review comment

* Fix failed tests

* Provide profile task downstream to sniffer

* fix agent unit testcase issue

* add profile switch config on sniffer

* fix es error

* 1. add @DefaultImplementor on the sniffer profile task service
2. change ProfileTaskExecutionService#PROFILE_TASK_READY_SCHEDULE to final and remove volatile
2. fix style error

* change timeFromStartMills use `<` to compare

* 1. add `maxSamplingCount` to profile task
2. make profile task limit to the common package

* 1. change `agent.active_profile` to `profile.active` and make true on default
2. add `maxSamplingCount` in profile task
3. use `createTime` to check has new command list
4. add task re-check before process profile task

* 1. add `profile-receiver` document
2. change `ProfileTaskExecutionService` use single schedule thread pool
3. cache dont need fetch data when no data, use auto-fresh mechanism only

* remove navigate time judge, fix comment wrong meaning

* feat: add support plugin of mongodb v3.6.x

* update support-version.list

* update Supported-list.md

* update Supported-list.md

* Add witness class for v3.6

* update plugins-test.yaml
Co-authored-by: Nzhang-wei <pknfe@outlook.com>
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>
Co-authored-by: NWeiyi Liu <liuweiyi@cmss.chinamobile.com>

* Kotlin coroutine plugin write in Java
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

* update elasticsearch-7.x agent support version.

* update supported-list.md doc & plugins-test.yaml

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

* Add missing change

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

* [test/plugin] immigrate test activemq scenario.
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

* [Feature] Add tag annotation to allow tagging span with annotation

* Use repeatable annotation syntax and add docs and example codes

* Fix failed unit test

* Add play-scenario

* Set play plugin as default
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>
Co-authored-by: NWeiyi Liu <liuweiyi@cmss.chinamobile.com>

* Move Webflux plugin into default list.

* Fix a typo.

* Move lettuce into default plugin

* Fix maven pom

* zookeeper test

* update expected data file

* fix review code

* fixed

* bugfix

* update version

* fix bug

* fix
Co-authored-by: Nzhang-wei <pknfe@outlook.com>
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

* Update JDK compiling level to 8, and remove zip dist.

* Exclude annotation and shade API.

* Fix more exclusion.

* 1. Update grava and gson 2. Fix compile issue. 3. Keep protoc and maven plugin in old version. Some incompatible of 3rd party grpc proto.

* Fix dependency conflicts, license and notice issue, and dependency check script issue
Co-authored-by: Nkezhenxu94 <kezhenxu94@163.com>

* servicecomb scenario

* Add Java Agent for Apache HttpClient 3.x

* Update Supported-list.md

* Update pom.xml

* webflux-reactive

* add support version comment, modify gateway

* add test case, modify name

* add docs

* remove healthCheck

* Add Java agent plugin for Jdk Threading

* Fix expected data according to changes in master

* Update agent.config

* Fix failed plugin test

* 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.

* [test/plugin] immigrate test cassandra scenario.

* update support list doc.

* delete space error.

* disable jmx report.

* remove jmx dependence.

* Disable jmx report.

* Update support list doc.

Add instructions for logback configuration with logstash, use custom
json format

* update es7.x plugin test support version.

* update Supported-list.md and action config.

* Update README.md

logging.dir 's Description is an Error .Default value is not System.out. It is a dir.

Add java agent deployment document for skywalking with jetty

* plugin code

* NPE FIX

* [test/plugin] add elasticsearch 7.x plugin test scenario.

* refresh index, make can search.

* remove unused package.

* update supported framework document.

* fix service name repeat.

* Add elasticsearch 6.x plugin & elasticsearch 6.x test scenario

* move FILTER_LENGTH_LIMIT

* fix checkstyle

* add SupplierWrapper to support java 1.8+
Signed-off-by: Nshixiang <xiang.shi001@bkjk.com>

* add SupplierWrapper to support java 1.8+
Signed-off-by: Nshixiang <xiang.shi001@bkjk.com>

* Update SupplierWrapper.java

add new line

* add supplier

* add supplier test

* add test

* add test yaml

* Update Application-toolkit-trace-cross-thread.md

Add how to use SupplierWrapper in Java 1.8+

* Add postgresql agent sql query param show

* feat: add support of mongodb v3.7.x or higher

* feat: remove mapping, using EnhancedInstance to mark remotePeer

* feat: add support of v3.6.x

* fix: disable support will 3.6.x, which will throw ClassCircularityError exception

* style: clean code

* fix support of 3.8.x~3.11.1, update test case and doc

* update stage name

* rename class

* rename stage

* add plugin netty-socketio https://github.com/mrniko/netty-socketio

* delete create exit span interceptor.

* delete create exit span interceptor testcase.

* delete create exit span interceptor testcase.

* add constructor test unit

* change bind on random port in test case

* reverse upstream master whitespace

* resolve build_id param

* delete health check segment test case

* add ContextManager.isActive check before use activeSpan invoke

* remove unnecessary code and blank line

* feat: add test case for mongodb-3.x-plugin

* fix: agent-test script error

* feat: change non-compliant code

* fix: remove not proper config

* docs: update docs

* Merge branch 'master' of https://github.com/apache/skywalking into mongodb-testcase

# Conflicts:
#	Jenkinsfile-Agent-Test-3