private static void netxsurgery() throws Exception {
/* Force off NetX codebase classloading. */
Class<?> nxc;
try {
nxc = Class.forName("net.sourceforge.jnlp.runtime.JNLPClassLoader");
} catch (ClassNotFoundException e1) {
try {
nxc = Class.forName("netx.jnlp.runtime.JNLPClassLoader");
} catch (ClassNotFoundException e2) {
throw (new Exception("No known NetX on classpath"));
}
}
ClassLoader cl = MainFrame.class.getClassLoader();
if (!nxc.isInstance(cl)) {
throw (new Exception("Not running from a NetX classloader"));
}
Field cblf, lf;
try {
cblf = nxc.getDeclaredField("codeBaseLoader");
lf = nxc.getDeclaredField("loaders");
} catch (NoSuchFieldException e) {
throw (new Exception("JNLPClassLoader does not conform to its known structure"));
}
cblf.setAccessible(true);
lf.setAccessible(true);
Set<Object> loaders = new HashSet<Object>();
Stack<Object> open = new Stack<Object>();
open.push(cl);
while (!open.empty()) {
Object cur = open.pop();
if (loaders.contains(cur)) continue;
loaders.add(cur);
Object curl;
try {
curl = lf.get(cur);
} catch (IllegalAccessException e) {
throw (new Exception("Reflection accessibility not available even though set"));
}
for (int i = 0; i < Array.getLength(curl); i++) {
Object other = Array.get(curl, i);
if (nxc.isInstance(other)) open.push(other);
}
}
for (Object cur : loaders) {
try {
cblf.set(cur, null);
} catch (IllegalAccessException e) {
throw (new Exception("Reflection accessibility not available even though set"));
}
}
}
