Index: tests/returns.test
===================================================================
diff -u -r6edd8aa86d66687dcfa2c60460de6e9b41ee0051 -re75f57c39bdc5455b65317013ed58d2db8d22dbd
--- tests/returns.test	(.../returns.test)	(revision 6edd8aa86d66687dcfa2c60460de6e9b41ee0051)
+++ tests/returns.test	(.../returns.test)	(revision e75f57c39bdc5455b65317013ed58d2db8d22dbd)
@@ -350,4 +350,18 @@
     ? {::nsf::methodproperty C lappend returns} ""
     ? {::nsf::methodproperty ::nx::Object method returns} ""
 
+}
+
+Test case empty-paramdefs-robustedness {
+  ::nx::Object create ku {
+    # Condition 1: An empty or checker-free parameter spec!
+    :method foo {} {;}
+    # Condition 2: A call to ::nsf::methodproperty which acquires a
+    # NsfParamDefs
+    ::nsf::methodproperty [::nx::current] foo returns; # a returns query
+    # At this point, we find a NsfParamDefs structure with an empty set
+    # of params! Subsequent references to paramDefs->paramsPtr in
+    # e.g. ListCmdParams() would crash ... if not trapped appropriately.
+    ? [list [::nx::current] info method parameter foo] ""; # boom!
+  }
 }
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