/** Verify and invoke main if present in the specified class. */
public static void invokeApplicationMain(Class mainClass, String[] args)
throws InvocationTargetException, IllegalAccessException, ClassNotFoundException {
String err = localStrings.getLocalString("utility.no.main", "", new Object[] {mainClass});
// determine the main method using reflection
// verify that it is public static void and takes
// String[] as the only argument
Method mainMethod = null;
try {
mainMethod = mainClass.getMethod("main", new Class[] {String[].class});
} catch (NoSuchMethodException msme) {
_logger.log(Level.SEVERE, "enterprise_util.excep_in_utility", msme);
throw new ClassNotFoundException(err);
}
// check modifiers: public static
int modifiers = mainMethod.getModifiers();
if (!Modifier.isPublic(modifiers) || !Modifier.isStatic(modifiers)) {
err =
localStrings.getLocalString(
"utility.main.notpublicorstatic",
"The main method is either not public or not static");
_logger.log(Level.SEVERE, "enterprise_util.excep_in_utility_main.notpublicorstatic");
throw new ClassNotFoundException(err);
}
// check return type and exceptions
if (!mainMethod.getReturnType().equals(Void.TYPE)) {
err =
localStrings.getLocalString(
"utility.main.notvoid", "The main method's return type is not void ");
_logger.log(Level.SEVERE, "enterprise_util.excep_in_utility_main.notvoid");
throw new ClassNotFoundException(err);
}
// build args to the main and call it
Object params[] = new Object[1];
params[0] = args;
mainMethod.invoke(null, params);
}
