Hi,
I tried to use the Immutant app server, some ClojureScript, and this little
ring middleware https://github.com/jblomo/ring.middleware.clojurescript to
"automatically" compile the ClojureScript and the resulting js.
Upon a web-request, ClojureScript's build function is called from within
the ring-handler function as expected, but it crashes with an exception -
see below.
Looking at some source code of Immutant and ClojureScript, I saw that
ClojureScript calls getContextClassLoader on the currentThread, and expects
it to have a 'findResources' function, which the effective classloader at
that time, the ImmutantClassLoader does not define itself - though it's a
protected method from the standard base class java.lang.ClassLoader.
So, is that a bug in ClojureScript?
Does anybody have an idea for a workaround (I have little experience with
all of this, including classloaders)?
Stacktrace:
23:06:01,247 ERROR [stderr] (http-/127.0.0.1:8080-1) Exception:
java.lang.IllegalArgumentException: No matching method found: findResources
for class org.immutant.core.ImmutantClassLoader
23:06:01,247 ERROR [stderr] (http-/127.0.0.1:8080-1)
Reflector.java:53 clojure.lang.Reflector.invokeMatchingMethod
23:06:01,247 ERROR [stderr] (http-/127.0.0.1:8080-1)
Reflector.java:28 clojure.lang.Reflector.invokeInstanceMethod
23:06:01,247 ERROR [stderr] (http-/127.0.0.1:8080-1)
closure.clj:849 cljs.closure/get-upstream-deps*
23:06:01,247 ERROR [stderr] (http-/127.0.0.1:8080-1)
AFn.java:159 clojure.lang.AFn.applyToHelper
23:06:01,247 ERROR [stderr] (http-/127.0.0.1:8080-1)
AFn.java:151 clojure.lang.AFn.applyTo
23:06:01,247 ERROR [stderr] (http-/127.0.0.1:8080-1)
core.clj:601 clojure.core/apply
23:06:01,247 ERROR [stderr] (http-/127.0.0.1:8080-1)
core.clj:5620 clojure.core/memoize[fn]
23:06:01,247 ERROR [stderr] (http-/127.0.0.1:8080-1)
RestFn.java:397 clojure.lang.RestFn.invoke
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
closure.clj:868 cljs.closure/build
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
clojurescript.clj:44
ring.middleware.clojurescript/wrap-clojurescript[fn]
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
clojurescript.clj:38
ring.middleware.clojurescript/wrap-clojurescript[fn]
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
core.clj:106 compojure.core/routing[fn]
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
core.clj:2390 clojure.core/some
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
core.clj:106 compojure.core/routing
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
RestFn.java:139 clojure.lang.RestFn.applyTo
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
core.clj:603 clojure.core/apply
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
core.clj:111 compojure.core/routes[fn]
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
Var.java:415 clojure.lang.Var.invoke
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
reload.clj:18 ring.middleware.reload/wrap-reload[fn]
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
stacktrace.clj:15 ring.middleware.stacktrace/wrap-stacktrace-log[fn]
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
stacktrace.clj:79 ring.middleware.stacktrace/wrap-stacktrace-web[fn]
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
ring.clj:46 immutant.web.ring/handle-request[fn]
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
ring.clj:42 immutant.web.ring/handle-request
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
Var.java:423 clojure.lang.Var.invoke
23:06:01,248 ERROR [stderr] (http-/127.0.0.1:8080-1)
ClojureRuntimeImpl.java:162
org.immutant.runtime.impl.ClojureRuntimeImpl.invoke
23:06:01,249 ERROR [stderr] (http-/127.0.0.1:8080-1)
ClojureRuntimeImpl.java:154
org.immutant.runtime.impl.ClojureRuntimeImpl.invoke
23:06:01,249 ERROR [stderr] (http-/127.0.0.1:8080-1)
RingServlet.java:70 org.immutant.web.servlet.RingServlet.doRing
23:06:01,249 ERROR [stderr] (http-/127.0.0.1:8080-1)
RingServlet.java:47 org.immutant.web.servlet.RingServlet.doGet
23:06:01,249 ERROR [stderr] (http-/127.0.0.1:8080-1)
HttpServlet.java:734 javax.servlet.http.HttpServlet.service
23:06:02,291 ERROR [stderr] (http-/127.0.0.1:8080-1)
HttpServlet.java:847 javax.servlet.http.HttpServlet.service
23:06:02,291 ERROR [stderr] (http-/127.0.0.1:8080-1)
ApplicationFilterChain.java:295
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
23:06:02,291 ERROR [stderr] (http-/127.0.0.1:8080-1)
ApplicationFilterChain.java:214
org.apache.catalina.core.ApplicationFilterChain.doFilter
23:06:02,291 ERROR [stderr] (http-/127.0.0.1:8080-1)
StandardWrapperValve.java:230
org.apache.catalina.core.StandardWrapperValve.invoke
23:06:02,291 ERROR [stderr] (http-/127.0.0.1:8080-1)
StandardContextValve.java:149
org.apache.catalina.core.StandardContextValve.invoke
23:06:02,291 ERROR [stderr] (http-/127.0.0.1:8080-1)
SecurityContextAssociationValve.java:169
org.jboss.as.web.security.SecurityContextAssociationValve.invoke
23:06:02,291 ERROR [stderr] (http-/127.0.0.1:8080-1)
StandardHostValve.java:145 org.apache.catalina.core.StandardHostValve.invoke
23:06:02,292 ERROR [stderr] (http-/127.0.0.1:8080-1)
ErrorReportValve.java:97 org.apache.catalina.valves.ErrorReportValve.invoke
23:06:02,292 ERROR [stderr] (http-/127.0.0.1:8080-1)
StandardEngineValve.java:102
org.apache.catalina.core.StandardEngineValve.invoke
23:06:02,292 ERROR [stderr] (http-/127.0.0.1:8080-1)
CoyoteAdapter.java:336 org.apache.catalina.connector.CoyoteAdapter.service
23:06:02,292 ERROR [stderr] (http-/127.0.0.1:8080-1)
Http11Processor.java:856 org.apache.coyote.http11.Http11Processor.process
23:06:02,292 ERROR [stderr] (http-/127.0.0.1:8080-1)
Http11Protocol.java:653
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process
23:06:02,292 ERROR [stderr] (http-/127.0.0.1:8080-1)
JIoEndpoint.java:920 org.apache.tomcat.util.net.JIoEndpoint$Worker.run
23:06:02,292 ERROR [stderr] (http-/127.0.0.1:8080-1)
Thread.java:722 java.lang.Thread.run
23:06:02,292 ERROR [stderr] (http-/127.0.0.1:8080-1)
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