Attaching to jvm-debugger server started by gradle failing

[kohnish]

I get the following output after trying to attach.

[INFO] main      Connected to client
[ERROR] async0    Internal error: java.lang.NullPointerException: getName(...) must not be null
[ERROR] java.util.concurrent.CompletionException: java.lang.NullPointerException: getName(...) must not be null
[ERROR] 	at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315)
[ERROR] 	at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320)
[ERROR] 	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770)
[ERROR] 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
[ERROR] 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
[ERROR] 	at java.base/java.lang.Thread.run(Thread.java:840)
[ERROR] Caused by: java.lang.NullPointerException: getName(...) must not be null
[ERROR] 	at org.javacs.ktda.adapter.DAPConverter.toInternalSource(DAPConverter.kt:45)
[ERROR] 	at org.javacs.ktda.adapter.KotlinDebugAdapter$setBreakpoints$1.invoke(KotlinDebugAdapter.kt:264)
[ERROR] 	at org.javacs.ktda.adapter.KotlinDebugAdapter$setBreakpoints$1.invoke(KotlinDebugAdapter.kt:256)
[ERROR] 	at org.javacs.kt.util.AsyncExecutor.compute$lambda$2(AsyncExecutor.kt:19)
[ERROR] 	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
[ERROR] 	... 3 more
[ERROR] async0    Internal error: java.lang.NullPointerException: getName(...) must not be null
[ERROR] java.util.concurrent.CompletionException: java.lang.NullPointerException: getName(...) must not be null
[ERROR] 	at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315)
[ERROR] 	at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320)
[ERROR] 	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1770)
[ERROR] 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
[ERROR] 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
[ERROR] 	at java.base/java.lang.Thread.run(Thread.java:840)
[ERROR] Caused by: java.lang.NullPointerException: getName(...) must not be null
[ERROR] 	at org.javacs.ktda.adapter.DAPConverter.toInternalSource(DAPConverter.kt:45)
[ERROR] 	at org.javacs.ktda.adapter.KotlinDebugAdapter$setBreakpoints$1.invoke(KotlinDebugAdapter.kt:264)
[ERROR] 	at org.javacs.ktda.adapter.KotlinDebugAdapter$setBreakpoints$1.invoke(KotlinDebugAdapter.kt:256)
[ERROR] 	at org.javacs.kt.util.AsyncExecutor.compute$lambda$2(AsyncExecutor.kt:19)
[ERROR] 	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
[ERROR] 	... 3 more
* Command "attach" timed out after 10 seconds, the timeout period is configurable with `dape-request-timeout' *
* Request timeout *
[INFO] async1    Waiting for configuration done response for 10 seconds...

DAP client config (emacs-dape)

(kotlin-debug-adapter
  modes (kotlin-mode)
  ensure dape-ensure-command
  command "kotlin-debug-adapter"
  command-cwd dape-command-cwd
  ;; defer-launch-attach t
  command-insert-stderr t
  :request "attach"
  :type "kotlin"
  :hostName "127.0.0.1"
  :port 5005
  :timeout 20000
  :enableJsonLogging t
  :jsonLogFile "~/kda.log"
  :projectRoot "~/ktapp"
  )

I set breakpoint beforehands, if that affects anything.