/** Test a doubled class that extends the base class. */
static void testExtend(ClassLoader loader) {
Class doubledExtendClass;
Object obj;
/* get the "alternate" version of DoubledExtend */
try {
doubledExtendClass = loader.loadClass("DoubledExtend");
// System.out.println("+++ DoubledExtend is " + doubledExtendClass
// + " in " + doubledExtendClass.getClassLoader());
} catch (ClassNotFoundException cnfe) {
System.err.println("loadClass failed: " + cnfe);
return;
}
/* instantiate */
try {
obj = doubledExtendClass.newInstance();
} catch (InstantiationException ie) {
System.err.println("newInstance failed: " + ie);
return;
} catch (IllegalAccessException iae) {
System.err.println("newInstance failed: " + iae);
return;
} catch (LinkageError le) {
System.out.println("Got expected LinkageError on DE");
return;
}
/* use the base class reference to get a CL-specific instance */
Base baseRef = (Base) obj;
DoubledExtend de = baseRef.getExtended();
/* try to call through it */
try {
String result;
result = Base.doStuff(de);
System.err.println("ERROR: did not get LinkageError on DE");
System.err.println("(result=" + result + ")");
} catch (LinkageError le) {
System.out.println("Got expected LinkageError on DE");
return;
}
}
