Java Applet Viewer and the classpath (AIX only)
On AIX® systems, if you use the Applet Viewer to run an applet that is in CLASSPATH, you might get an AccessControlException in Swing. Because CLASSPATH implicitly contains the current directory, ".", this exception might occur if you run the Java™ Plug-in in the same directory that the applet class itself is in.
To work around this problem, ensure that: