+@implementation NSObject(NSExceptionNGMiscellaneous)
+
+- (BOOL)isException {
+ return NO;
+}
+- (BOOL)isExceptionOrNull {
+ return NO;
+}
+
+@end /* NSObject(NSExceptionNGMiscellaneous) */
+
+@implementation NSNull(NSExceptionNGMiscellaneous)
+
+- (BOOL)isException {
+ return NO;
+}
+- (BOOL)isExceptionOrNull {
+ return YES;
+}
+
+@end /* NSNull(NSExceptionNGMiscellaneous) */
+