闲来无事，想学习一下spring源代码，结果按照网上说的教程从git下载spring framework(版本：3.2.4)源码、用gradle（版本：2.9） 转换成eclipse项目时遇到一个诡异问题，提示信息如下：
:buildSrc:test UP-TO-DATE
:buildSrc:check UP-TO-DATE
:buildSrc:build UP-TO-DATE
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring project ‘:spring-orm-hibernate4’.
> Cannot change dependencies of configuration ‘:spring-orm-hibernate4:runtimeMer
ge’ after it has been resolved.
* Try:
Run with –stacktrace option to get the stack trace. Run with –info or –debug
option to get more log output.
BUILD FAILED
搜了一下，终于在http://segmentfault.com/q/1010000002721774 看到了答案：是因为JDK版本与spring framework源码的版本不太匹配，一开始我用JDK 8去build，就出现上述异常，然后改用JDK 7,还是不行，索性换了最新版的spring framework（版本：4.x）,此时编译即可顺利通过。
PS：spring framework相关简介、依赖等内容可参考如下链接：
- http://projects.spring.io/spring-framework/
- http://docs.spring.io/spring-framework/docs/current/spring-framework-reference/html/overview.html#dependency-management