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diff --git a/src/tests/userprog/bad-jump.c b/src/tests/userprog/bad-jump.c
new file mode 100644
index 0000000..51b7c9f
--- /dev/null
+++ b/src/tests/userprog/bad-jump.c
@@ -0,0 +1,13 @@
+/* This program attempts to execute code at address 0, which is not mapped.
+   This should terminate the process with a -1 exit code. */
+
+#include "tests/lib.h"
+#include "tests/main.h"
+
+void
+test_main (void) 
+{
+  msg ("Congratulations - you have successfully called NULL: %d", 
+        ((int (*)(void))NULL)());
+  fail ("should have exited with -1");
+}