The type sun.management.ManagementFactory is not visible

本文轉載自查看原文 2014-06-02 12:24 4738

Eclipse默認將這些受訪問限制的API設成了Error。
解決方法：
只要將Windows---Preferences---Java--Complicer---Errors/Warings里面的Deprecated and restricted API中的Forbidden references(access rules) 選為Waring就可以編譯過了

今天在JDK1.7中引入sun.management.ManagementFactory，會報錯。之前在JDK1.6中引入並無錯，剛開始懷疑是否是JDK版本升級了，此方法類過期。接着打開JDK1.7中的rt.jar中，發現是有此類的。

上網查閱，有人也出現過此問題，不過似乎不是因為JDK版本的問題，他的解決辦法是更改此類的引用路徑，改為java.lang.management.ManagementFactory，我試了下，確實可以的，不過至於JDK1.7版本中，為什么無法引用sun.management.ManagementFactory，我始終還不明白（如有哪位了解為什么，還望可以指點）。后來我把JDK1.7卸載掉了，裝了1.6版本的，對於引用sun.management.ManagementFactory、java.lang.management.ManagementFactory均是可以的。

由於本人知識有限，暫時還不了解rt.jar中sun和java.lang中的類有啥區別，為什么都會有ManagementFactory方法類？

http://tim-fly.iteye.com/blog/1297572

http://bbs.csdn.net/topics/390083947

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