There's no need to use eval when reflection will do. On Mon, Jan 12, 2015 at 6:45 PM Wei "pw" Peng <[email protected]> wrote:
> I have a problem with stacking ephemeral dynamically generated classes > that do not get unloaded, and therefore the host JVM's class count > constantly increases. > > My situation is like this. I have a need in my program to dynamically > interop with Java (see the example below for the exact meaning of > "dynamically interop with Java"). I use the following trick to bypass the > "CompilerException java.lang.RuntimeException: Can't embed object in code, > maybe print-dup not defined" error: > > (def ^:dynamic *hack*) > > (let [obj "abc" > method "replace" > args [\a \b]] > (binding [*hack* (atom obj)] > (eval `(. @*hack* > ~(symbol method) ~@args)))) > ;; => "bbc" > > This works fine for my purpose---functionally. However, profiling shows > that the JVM loads more classes over time without unloading. The classes > that are get loaded have names like "clojure.core$eval12345" (with the > number constantly growing)., which suggests that the above code may be the > culprit. > > Profiling also suggests that my program do not have other memory leak > problem besides this class leak problem---the heap consumption is flat with > repeated job. It is the non-heap memory usage that is associated with class > loading that keeps on growing. > > Any suggestion on how to resolve this is appreciated. > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to [email protected] > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > [email protected] > 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 [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to [email protected] Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to [email protected] 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
