When using kryo, Byte-buddy occurs exception when match type.

> java.lang.IllegalStateException: Cannot resolve type description for com.esotericsoftware.reflectasm.PublicConstructorAccess

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

* [maven-release-plugin] prepare release v6.5.0

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

* Add change log for 6.5.0

* move FILTER_LENGTH_LIMIT

* fix checkstyle

* 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+

* add Jenkinsfile-Agent-Test-4

* Add SkyWalking plugin test framework doc

* Remove Chinese.

* Add a description to the env variable, CASE_SERVER_IMAGE_VERSION

* Fix typo

* Change paragraph structure.

* Update EtcdCoordinator.java

when EtcdCoordinator cannot connect to etcd cluster for a long time, 
the information registered in etcd will expire and refresh() function will not work.

* 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

* fix elasticsearch query data window size too large error.

* make query max window size configurable.

* add webflux testcase

* [test/plugin] immigrate httpasyncclient scenario