nestedexception.rb in rubyjedi-soap4r-1.5.8.20100616125722

- old
+ new

@@ -18,10 +18,10 @@
     @cause = cause
     @original_backtrace = nil
   end
 
   def set_backtrace(backtrace)
-    if @cause and @cause.respond_to?(:backtrace)
+    if defined?(@cause) and @cause.respond_to?(:backtrace)
       @original_backtrace = backtrace
 =begin
       # for agressive backtrace abstraction: 'here' only should not be good
       here = @original_backtrace[0]
       backtrace = Array[*@cause.backtrace]