解決Eclipse中Java工程間循環引用而報錯的問題

如果我們的項目包含多個工程（project），而它們之間又是循環引用的關係，那麼Eclipse在編譯時會拋出如下一個錯誤信息：
“A cycle was detected in the build path of project: XXX”

解決方法非常簡單：

Eclipse Menu -> Window -> Preferences... -> Java -> Compiler -> Building -> Building path problems -> Circular dependencies ->將Error改成Warning。

The Solution of the Problem That the Java Proejcts Have the Cycle References in Eclipse
If our project contains multiple proejcts, and the cycle references among them, Eclipse will throw out following error message while compiling:
"A cycle was detected in the build path of project: XXX"
The solution is quite simple:
Eclipse Menu -> Window -> Preferences... -> Java -> Compiler -> Building -> Building path problems -> Circular dependencies -> Change it from "Error" to "Warning".

source: http://yichen914.spaces.live.com/blog/cns!723590D920FAF62B!534.entry