Make the test pass for jython where there are no sys.executable.
diff --git a/Lib/test/test_atexit.py b/Lib/test/test_atexit.py
index c9d72a7..324b76e 100644
--- a/Lib/test/test_atexit.py
+++ b/Lib/test/test_atexit.py
@@ -1,9 +1,13 @@
 # Test the atexit module.
-from test.test_support import TESTFN, vereq
+from test.test_support import TESTFN, vereq, is_jython
 import atexit
 from os import popen, unlink
 import sys
 
+executable = sys.executable
+if is_jython:
+    executable = "jython"
+
 input = """\
 import atexit
 
@@ -23,7 +27,7 @@
 f.write(input)
 f.close()
 
-p = popen("%s %s" % (sys.executable, fname))
+p = popen("%s %s" % (executable, fname))
 output = p.read()
 p.close()
 vereq(output, """\
@@ -51,7 +55,7 @@
 f.write(input)
 f.close()
 
-p = popen("%s %s" % (sys.executable, fname))
+p = popen("%s %s" % (executable, fname))
 output = p.read()
 p.close()
 vereq(output, """\