Java錯誤記錄__Java

1、使用JPEGImageEncoder，eclipse報錯如下：

Access restriction: The type JPEGImageEncoder is not accessible due to restriction on required library C:\Java\jre1.6.0_07\lib\rt.jar
 Access restriction: The type JPEGCodec is not accessible due to restriction on required library C:\Java\jre1.6.0_07\lib\rt.jar
 Access restriction: The method createJPEGEncoder(OutputStream) from the type JPEGCodec is not accessible due to restriction on required library C:\Java\jre1.6.0_07\lib\rt.jar

 Access restriction: The method encode(BufferedImage) from the type JPEGImageEncoder is not accessible due to restriction on required library C:\Java\jre1.6.0_07\lib\rt.jar

這個是eclipse的設定問題，它預設把這些受訪問限制的API設成了ERROR，只要把 
Windows-Preferences-Java-Complicer-Errors/Warnings 
裡面的Deprecated and restricted API中的Forbidden references(access rules)選為Warning就可以了。