> It might be something like this(pasting here): > The problem is the hyphen in the namespace.
I think that causes problems at compile time, rather than runtime, but there is a chance you are right, so I will go through and carefully change all hyphens to underscores in all namespace declarations. W dniu wtorek, 29 stycznia 2013 02:38:47 UTC-5 użytkownik AtKaaZ napisał: > > It might be something like this(pasting here): > > The problem is the hyphen in the namespace. > > From the *Joy of Clojure* > > HYPHENS/UNDERSCORES If you decide to name your namespaces with hyphens, à > la my-cool-lib, then the corresponding source file must be named with > underscores in place of the hyphens (my_cool_lib.clj). > > Here is the underlying explanation: > http://stackoverflow.com/q/4451693/32174 > > answered Nov 23 '11 at 4:10 > <http://stackoverflow.com/users/32174/julien-chastang> > Julien Chastang <http://stackoverflow.com/users/32174/julien-chastang> > > > > On Tue, Jan 29, 2013 at 8:03 AM, larry google groups > <lawrenc...@gmail.com<javascript:> > > wrote: > >> >> Maybe someone can tell me where I went wrong on this one. >> >> I have an app. Written with Clojure 1.4. >> >> At first the app was very small, so I put all the code into core.clj. >> When I got to about 500 or 600 lines of code, core.clj was too big, so >> I started to break it up. There were some string-to-enlive-node >> functions that I moved to a file I called >> transform_strings_and_nodes.clj. >> >> The app keeps the most recent 15 minutes worth of session info in >> memory, then saves it to the database. Eventually, when this is live, >> tourists will arrive and interact with a kiosk and choose an >> itinerary. The itinerary is bulky, a lot of HTML strings held in >> memory. I began to wonder how bulky this might get. I thought I would >> write a profile function, relying on Timbre >> https://github.com/ptaoussanis/timbre. >> >> During development, I would have this function run in a thread and >> call itself every 5 minutes. I decided I would hit the app with a lot >> of dummy data, and the profile function would do stuff like time how >> long it took to transform all the HTML strings in memory into Enlive >> nodes. >> >> This was working for awhile. I am not sure what changed, but now I am >> getting: >> >> Exception in thread "Thread-4" java.lang.NoClassDefFoundError: >> kiosks_clojure/transform_strings_and_nodes >> $join_all_tourist_itineraries_together$fn__115 >> at kiosks_clojure.transform_strings_and_nodes >> >> $join_all_tourist_itineraries_together.invoke(transform_strings_and_nodes.clj: >> 84) >> at kiosks_clojure.transform_strings_and_nodes >> >> $render_html_string_to_enlive_nodes.invoke(transform_strings_and_nodes.clj: >> 94) >> at kiosks_clojure.transform_strings_and_nodes >> >> $prepare_render_html_string_to_enlive_nodes.invoke(transform_strings_and_nodes.clj: >> 101) >> at kiosks_clojure.transform_strings_and_nodes >> >> $profile_render_html_string_to_enlive_nodes.invoke(transform_strings_and_nodes.clj: >> 105) >> at clojure.lang.AFn.run(AFn.java:24) >> at java.lang.Thread.run(Thread.java:722) >> Caused by: java.lang.ClassNotFoundException: >> kiosks_clojure.transform_strings_and_nodes >> $join_all_tourist_itineraries_together$fn__115 >> at java.net.URLClassLoader$1.run(URLClassLoader.java:366) >> at java.net.URLClassLoader$1.run(URLClassLoader.java:355) >> at java.security.AccessController.doPrivileged(Native Method) >> at java.net.URLClassLoader.findClass(URLClassLoader.java:354) >> at java.lang.ClassLoader.loadClass(ClassLoader.java:423) >> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java: >> 308) >> at java.lang.ClassLoader.loadClass(ClassLoader.java:356) >> >> >> As far as I can read the stack trace, the exception seems to get >> triggered here: >> >> (defn join-all-tourist-itineraries-together [sessions] >> (reduce >> (fn [vector-of-tourist-itineraries-as-strings next-tourist-session] >> (conj vector-of-tourist-itineraries-as-strings (get-in next- >> tourist-session [:itinerary-as-string]))) >> [] >> sessions)) >> >> >> Which is called from here: >> >> (defn render-html-string-to-enlive-nodes [] >> "2013-01-24 - I worry about how slow this might get when the memory >> is full of intineraries. I'm going to run these tests while this in >> development, to get a sense for what kind of performance we might >> get." >> (let [sessions (:sessions @um/interactions) >> accumulated-total-of-all-tourist-itineraries-in-memory-as- >> strings (st/join (join-all-tourist-itineraries-together sessions)) >> length-of-string-to-be-rendered (.length (str accumulated- >> total-of-all-tourist-itineraries-in-memory-as-strings)) >> itineraries-as-one-string-wrapped-in-div (apply str "<div >> id='all-itineraries'>" accumulated-total-of-all-tourist-itineraries-in- >> memory-as-strings "</div>")] >> (println (apply str "In render-html-string-to-enlive-nodes, the >> length of the HTML string: " length-of-string-to-be-rendered)) >> (transform-html-string-to-enlive-nodes itineraries-as-one-string- >> wrapped-in-div (keyword "#all-itineraries")))) >> >> (defn prepare-render-html-string-to-enlive-nodes [] >> (p :string-to-enlive-nodes (render-html-string-to-enlive-nodes))) >> >> (defn profile-render-html-string-to-enlive-nodes [] >> (. java.lang.Thread sleep 300000) >> (profile :debug :summary-render-html-strings-to-enlive-nodes >> (prepare-render-html-string-to-enlive-nodes))) >> >> >> >> I looked for info about this error and I found this: >> >> >> http://javarevisited.blogspot.com/2011/06/noclassdeffounderror-exception-in.html >> >> which says: >> >> "NoClassDefFoundError in Java comes when Java Virtual Machine is not >> able to find a particular class at runtime which was available during >> compile time. " >> >> >> I am very ignorant of the JVM and I do not understand how this can >> happen. Right now, while testing this app, I am compiling it locally >> on my Macintosh and I am running it locally on my Macintosh. How can a >> class be present at compile time but not at runtime? >> >> >> >> >> -- >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clo...@googlegroups.com<javascript:> >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+u...@googlegroups.com <javascript:> >> For more options, visit this group at >> http://groups.google.com/group/clojure?hl=en >> --- >> You received this message because you are subscribed to the Google Groups >> "Clojure" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to clojure+u...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> > > > -- > Please correct me if I'm wrong or incomplete, > even if you think I'll subconsciously hate it. > > -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
