Name: sgC58550 Date: 05/16/97
If a class that defines native methods is loaded by a ClassLoader
other than the system default ClassLoader, then its native methods
are never resolved (ie, linked against the underlying libraries).
in such a situation, at runtime, when the native methods are invoked,
UnsatisfiedLinkError is thrown. these methods link correctly and work
fine if the defining class is loaded by the default ClassLoader.
As an example, system classes that define native methods exhibit this
problem. for example, java.lang.Thread and sun.awt.windows.WTookit.
Additional info included as attachment.