Release 2.6.0: Java option -Xbootclasspath auto setting and using logger adaptor for TTL java agent 🚗 🍭

Change Log

Java option -Xbootclasspath auto setting, and use logger adaptor for TTL java agent.

New Features

• Java option -Xbootclasspath auto setting 🚗 #99
  Simplify -Xboot-Class-Path setting, no need set java option -Xbootclasspath manually.
• Use logger adaptor for TTL java agent 🍭 #97
  • use simple std out/error instead of JUL in TTL java agent.
    java agent start and process when app boot, it is difficult to use (java.util.logging)JUL correctly 😩; especially cooperate with app server(eg tomcat or jboss).

Especially thanks our new TTL team member @xwshiustc ! ❤️ He provided the requirements/features and discussed the design/implementation solution warmly!

Improvements

• improve log for method signiture in TTL Agent.
• remove -Xbootclasspath setting in CI.
• shade javassist to internal package.
• add git-commit-id-plugin, capture SCM info in release.
• add Maintainability badge.
• fix typo: scritps -> scripts.
• upgrade kotlin.version to 1.2.60.
• documentation improvement
  • fix terminology, thread cache -> thread pooling
  • add maven dependency infos of TTL integration

Java API Doc

http://alibaba.github.io/transmittable-thread-local/apidocs/2.6.0/index.html

Maven dependency

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>transmittable-thread-local</artifactId>
    <version>2.6.0</version>
</dependency>

Already deploy to maven central repository.