Protocols considered harmful?

Hi, I've been an enthusiastic Clojure tinkerer for a few years now--it's a great language!--but only recently began using it professionally, where I've stumbled into a strong disagreement over the use of protocols vs. multimethods for single dispatch polymorphism. I had always assumed that

Re: Clojure on Azul Zing JVM

I've worked on several projects where Zing was considered as a solution to a few problems (normally GC pauses due to really large heaps). But in the end we never trailed it, due to a few factors: 1) Zing isn't super cheap, it's not that expensive in the grand scheme of things, but it's an

Re: Clojure on Azul Zing JVM

IBM Java likewise has not excited very much conversation here. Perhaps because Java is "write once, run anywhere"! The various implementations of Java have their strong and weak points, but they will run Clojure in any case. -- You received this message because you are subscribed to the

Re: Plain clojure 1.9 fails with Could not locate ... clojure/spec/alpha.clj on classpath. in Kubuntu 18.04

The simplest workaround I found in the bug report you have shared here, is to configure Java to change the keystore type from pkcs12 to jks by simply editing the file `/etc/java-11-openjdk/security/java.security` and changing "keystore.type=pkcs12" to "keystore.type=jks" as it is explained in the

Re: Plain clojure 1.9 fails with Could not locate ... clojure/spec/alpha.clj on classpath. in Kubuntu 18.04

Thanks, Justin. I tried the commands you suggested on an Ubuntu 18.04 LTS system, and 'lein repl' still fails the same way afterwards when using Ubuntu's OpenJDK installation (and still succeeds when using Oracle's JDK installation). Andy On Mon, May 21, 2018 at 1:04 PM, Justin Smith

Re: Plain clojure 1.9 fails with Could not locate ... clojure/spec/alpha.clj on classpath. in Kubuntu 18.04

On Monday, 21 May 2018 20:22:21 UTC+1, Andy Fingerhut wrote: > > Is there some other command you would recommend to force reinstall of > ca-certs that might work? > > Specifically on the ca-certs thing, there is a bug filed with Ubuntu, and it looks like it should be fixed fairly soon;

Re: Plain clojure 1.9 fails with Could not locate ... clojure/spec/alpha.clj on classpath. in Kubuntu 18.04

I should have been more specific. Just uninstalling leaves old configs around, and fixing this requires a full purge of the package. these are my steps on a debian system: $ sudo dpkg --purge --force-depends ca-certificates-java $ sudo apt-get install ca-certificates-java sourced from this

Re: Plain clojure 1.9 fails with Could not locate ... clojure/spec/alpha.clj on classpath. in Kubuntu 18.04

Jesús: Agreed that this issue is frustrating. It doesn't necessarily help you here, but realize that this issue appears like it might be unique to Ubuntu 18.04's OpenJDK installations. This issue did not occur with earlier versions of Ubuntu that I am aware of. Andy On Mon, May 21, 2018 at

Re: Plain clojure 1.9 fails with Could not locate ... clojure/spec/alpha.clj on classpath. in Kubuntu 18.04

Justin, I have tried doing these commands on an Ubuntu 18.04 LTS system (which I believe is Debian based): % sudo apt-get --reinstall install ca-certificates % sudo apt-get --reinstall install ca-certificates-java Afterwards, the command "lein repl" still fails when using Ubuntu's OpenJDK8 or

Re: Plain clojure 1.9 fails with Could not locate ... clojure/spec/alpha.clj on classpath. in Kubuntu 18.04

this is a problem with your distribution's config for installing the vm, on debian based systems it can be fixed by forcing reinstall of ca-certs, it does not require an oracle vm On Mon, May 21, 2018 at 10:30 AM Jesús Gómez wrote: > I followed the Getting Started guide and

Re: Plain clojure 1.9 fails with Could not locate ... clojure/spec/alpha.clj on classpath. in Kubuntu 18.04

I followed the Getting Started guide and nothing worked well, except for the boot with nix installation. The clj tools Linux instructions failed the same way the lein one failed: Error with some certs [1] I've been told that this problem could be solved if I install Oracle Java instead of using

Re: Plain clojure 1.9 fails with Could not locate ... clojure/spec/alpha.clj on classpath. in Kubuntu 18.04

As of Clojure 1.9, the Clojure jar depends on two additional libraries (spec.alpha and core.specs.alpha). Using only the clojure jar is thus not sufficient. There are several ways to handle this, as described on the https://clojure.org/guides/getting_started page. 1. Use the new command line

Re: Plain clojure 1.9 fails with Could not locate ... clojure/spec/alpha.clj on classpath. in Kubuntu 18.04

Jesús Gómez wrote: > Simply: 1.7 works but 1.9 not. > Test: > $ # Download Clojure 1.7, 1.8 and 1.9 jars > $ seq 7 9 | xargs -L1 -I% wget http://repo1.maven.org/maven2/org/clojure/clojure/1.%.0/clojure-1.%.0.jar > $ seq 7 9 | xargs -L1 -I% java -jar clojure-1.%.0.jar -e

Plain clojure 1.9 fails with Could not locate ... clojure/spec/alpha.clj on classpath. in Kubuntu 18.04

Simply: 1.7 works but 1.9 not. Test: $ # Download Clojure 1.7, 1.8 and 1.9 jars $ seq 7 9 | xargs -L1 -I% wget http://repo1.maven.org/maven2/org/clojure/clojure/1.%.0/clojure-1.%.0.jar $ seq 7 9 | xargs -L1 -I% java -jar clojure-1.%.0.jar -e '"1.%.0 is Working"' "1.7.0 is Working" "1.8.0 is

Re: Clojure on Azul Zing JVM

Strange ! nobody using it ? I saw the Rich Hickey's testimony on their site -- 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