java.lang.NullPointerException on boot repl -c #764
Description
When I run boot repl -c I get this from server
`Elapsed time: 25.059 sec
ERROR: Unhandled REPL handler exception processing message {:id b145af8d-4274-42a3-839a-32beafcf646f, :op clone}
java.lang.NullPointerException: Cannot invoke "java.util.concurrent.Future.get()" because "fut" is null
at clojure.core$deref_future.invokeStatic(core.clj:2208)
at clojure.core$deref.invokeStatic(core.clj:2228)
at clojure.core$deref.invoke(core.clj:2214)
at cemerick.piggieback$wrap_cljs_repl$fn__5737.invoke(piggieback.clj:288)
at clojure.tools.nrepl.middleware$wrap_conj_descriptor$fn__5351.invoke(middleware.clj:22)
at nrepl.server$handle_STAR_.invokeStatic(server.clj:18)
at nrepl.server$handle_STAR_.invoke(server.clj:15)
at nrepl.server$handle$fn__4853.invoke(server.clj:27)
at clojure.core$binding_conveyor_fn$fn__4676.invoke(core.clj:1938)
at clojure.lang.AFn.call(AFn.java:18)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at java.base/java.lang.Thread.run(Thread.java:832)
Here's output from boot -vv repl -cregistering src/cljs [:create :modify :delete]
registering src/cljs/boot_03 [:create :modify :delete]
sending change event
Acquired java.util.concurrent.Semaphore@33e4b9c4[Permits = 0]...
Syncing project dirs to temp dirs...
Filesystem: copying boot_03/app.cljs...
Sync complete.
Released java.util.concurrent.Semaphore@33e4b9c4[Permits = 1]...
watch service closed
registering src/cljs [:create :modify :delete]
registering src/cljs/boot_03 [:create :modify :delete]
registering resources [:create :modify :delete]
registering resources/js [:create :modify :delete]
sending change event
Acquired java.util.concurrent.Semaphore@33e4b9c4[Permits = 0]...
Syncing project dirs to temp dirs...
Filesystem: copying index.html...
Filesystem: copying js/app.cljs.edn...
Filesystem: copying js/app.cljs.edn~...
Sync complete.
Released java.util.concurrent.Semaphore@33e4b9c4[Permits = 1]...
Classpath conflict: org.clojure/clojure version 1.8.0 already loaded, NOT loading version 1.7.0
Acquired java.util.concurrent.Semaphore@cce182c[Permits = 0]...
Committing fileset...
Commit: adding 798819a3e0057547f1d4ffff8116266a.1608047453531 js/app.cljs.edn~...
Commit: adding cbbf5d567111f2c7782b1122e3f16f22.1608072983214 boot_03/app.cljs...
Commit: adding dcb6be71e2ff90cc42032ed552f6c946.1608058443141 js/app.cljs.edn...
Commit: adding e25b7c959088ff03d89a312684c5683c.1608072752828 index.html...
Commit complete.
Released java.util.concurrent.Semaphore@cce182c[Permits = 1]...
Acquired java.util.concurrent.Semaphore@33e4b9c4[Permits = 0]...
Syncing project dirs to temp dirs...
Filesystem: copying boot_03/app.cljs...
Filesystem: copying index.html...
Filesystem: copying js/app.cljs.edn...
Filesystem: copying js/app.cljs.edn~...
Sync complete.
Released java.util.concurrent.Semaphore@33e4b9c4[Permits = 1]...
Here's build.boot:(set-env!
:source-paths #{"src/cljs"}
:resource-paths #{"resources"}
:dependencies '[[adzerk/boot-cljs "2.1.4" :scope "test"]
[adzerk/boot-reload "0.6.0" :scope "test"]
[pandeiro/boot-http "0.7.3" :scope "test"]
[org.clojure/clojurescript "1.10.339"]
;; REPL
[adzerk/boot-cljs-repl "0.3.3" :scope "test"]
[com.cemerick/piggieback "0.2.1" :scope "test"]
[weasel "0.7.0" :scope "test"]
[org.clojure/tools.nrepl "0.2.12" :scope "test"]
])
; get the tasks in the build
(require
'[adzerk.boot-cljs :refer [cljs]]
'[adzerk.boot-reload :refer [reload]]
'[pandeiro.boot-http :refer [serve]]
'[adzerk.boot-cljs-repl :refer [cljs-repl start-repl]]
)
; setup the global options
(task-options!
reload {:on-jsload 'boot-03.app/main}
target {:dir #{"target"}}
)
;; composed main dev task
(deftask dev []
(comp (serve :dir "target/")
(watch)
(reload)
(cljs-repl)
(cljs)
))`