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Apache

GitHub

JDK API

Jdk1.5 API  Jdk1.6 API  Jdk1.7 API  Jdk1.8 API

Spring 

Spring 官网

Spring Framework Reference Documentation All

Spring Framework Reference Documentation 3.0.x

Spring Framework Reference Documentation 4.0.x

Spring Framework Documentation  5.0.x

Hibernate

ORM: 5.4  5.3  5.2  5.1  5.0  4.3  4.2

OGM: 5.4  5.3  5.2

Tomcat

Apache Tomcat官网  Apache Tomcat 7  Apache Tomcat 8  Apache Tomcat 9

Jetty

Jetty官网  Jetty最新文档  Jetty历史文档 

9.0.6.v20130930    9.1.5.v20140505    9.2.22.v20170531

Git

Documentation  Book

Maven

Documentation  

Getting Started in 5 Minutes 

Getting Started in 30 Minutes