* 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.

* jdk-http

* jdk-http-scenario

* action

* update es7.x plugin test support version.

* update Supported-list.md and action config.

* [test/plugin] immigrate test oracle scenario.

* repair ojdbc14.jar download url.

* 1.update ojdbc14.jar site;2.Adjust task position.

* fix curl download problem by add -L.

* Merge run steps.

* Apache Pulsar Immigration.

* Add apache license header and move pulsar scenario to Feign_Canal

* Immigrate test gson scenario.

* Fix actions yaml & move gson test to other groups.

* Fix wrong format.

* Rename the group name.

* Add 2.8.6 version. && remove healthCheck.

* Add mysql scenario

* Immigrate tests okhttp scenario

* Fix Header.

* Fix license Header.

* Modify code follow the reivew suggestions.

* Fix expected.xml

* Restore the missed config

* Update okhttp elapsed time.

* Update total time for Group1.

* Fix the missed operationNames.

* Print systeminfo on failure

* fix project name

* docker-compose add network

* docker-compose add network

* revert interval

* [test/plugin] immigrate test hystrix scenario.

* change package name.

* add start script.

* plugin code

* NPE FIX

* grpc scenario

* update support-version.list

* Intercept feign RequestTemplate resolve args method ,get the url without parameters

* fix ci warnings

* optimize import

* fix: miss  path in feign target url like "http://localhost:8080/feign-scenario"
     fix feign-scenario test use pathVariable

* Add testcase to DefaultHttpClientInterceptorTest

* Clean ThreadLocal

* User one ThreadLocal replace two. User try/final  remove ThreadLocal .

* Code Optimize

* [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.

* Rabbitmq plugin e2e test migration

* 3753-code review fixes

* 3753-test-case-improvements

* Update pom.xml

Remove the repo addresses.

* Update Plugin-test.md

* immigrate test feign scenario.

* add license.

* update use test skeleton.

* delete repeat spring-boot starter dependence.

* add support-list version.

* make socketio-plugin testcase stable

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

* jedis scenario

* update doc

* fix archetypes

* fix log4j

* provide archetypes for testcase

* merge undertow scenario

* update elapsed time

* 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+

* Not support copy all optional plugins

* fix

* Update test/plugin/run.sh

to correct the mistakes of grammar
Co-Authored-By: Nkezhenxu94 <kezhenxu94@163.com>

* redisson support high lv version

* bugfix

* add comment

* add redisson testcase

* add webflux testcase

* [test/plugin] immigrate httpasyncclient scenario

* fix deficient code, "/socket.io/" http segment declare

* add agent test and fix expectedData.yaml file

* add listener on tomcat start, work for reduce socket io server start time
change "/socket.io/" operation "http.method", cause get or post will invoke both

* resolve style check error

* change socket io server and client start to health check servlet

* if startClientAndWaitConnect invoke on multi-thread, it will only check client ref, no check connect state, fix it.