冒昧打扰，请教一个问题！

NetBeans3.5.1昨天升级后，编译运行时会提示如下信息：
=======================================================================
java/lang/Class.java [30:1] package sun.misc does not exist
import sun.misc.Unsafe;
                ^
java/lang/Class.java [31:1] package sun.reflect does not exist
import sun.reflect.Reflection;
                   ^
java/lang/Class.java [32:1] package sun.reflect does not exist
import sun.reflect.ReflectionFactory;

                           ^
java/security/Policy.java [24:1] package sun.security.util does not exist
import sun.security.util.Debug;
                         ^
Note: Some input files use or override a deprecated API.
Note: Recompile with -deprecation for details.
100 errors
编译  UpdateFile. 时出错