getting NoClassDefFoundError using elastic4s

Question

I'm using play 2.6 and scala 2.12 in my app, and elastic search using elastic4s.

In my build.sbt:

"com.sksamuel.elastic4s" %% "elastic4s-core" % "5.6.0",
"com.sksamuel.elastic4s" %% "elastic4s-http" % "5.6.0",

and I keep getting this exception in my log:

Exception in thread "I/O dispatcher 16" java.lang.NoClassDefFoundError: Could not initialize class com.sksamuel.elastic4s.http.JacksonSupport$
    at com.sksamuel.elastic4s.http.ResponseHandler$.fromEntity(ResponseHandler.scala:47)
    at com.sksamuel.elastic4s.http.DefaultResponseHandler.$anonfun$onResponse$1(ResponseHandler.scala:55)
    at scala.util.Try$.apply(Try.scala:209)
    at com.sksamuel.elastic4s.http.DefaultResponseHandler.onResponse(ResponseHandler.scala:55)
    at com.sksamuel.elastic4s.http.HttpExecutable$RichRestClient$$anon$1.onSuccess(HttpExecutable.scala:27)
    at org.elasticsearch.client.RestClient$FailureTrackingResponseListener.onSuccess(RestClient.java:597)
    at org.elasticsearch.client.RestClient$1.completed(RestClient.java:352)
    at org.elasticsearch.client.RestClient$1.completed(RestClient.java:343)
    at org.apache.http.concurrent.BasicFuture.completed(BasicFuture.java:119)
    at org.apache.http.impl.nio.client.DefaultClientExchangeHandlerImpl.responseCompleted(DefaultClientExchangeHandlerImpl.java:177)
    at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.processResponse(HttpAsyncRequestExecutor.java:436)
    at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.inputReady(HttpAsyncRequestExecutor.java:326)
    at org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:265)
    at org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:81)
    at org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:39)
    at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:114)
    at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:162)
    at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:337)
    at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:315)
    at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:276)
    at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104)
    at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:588)
    at java.lang.Thread.run(Thread.java:748)

Trying to figure out what could cause this.

In another log also saw:

Caused by: com.fasterxml.jackson.databind.JsonMappingException: Scala module 2.8.8 requires Jackson Databind version >= 2.8.0 and < 2.9.0

so it looks like something with the jackson version, or also with the jackson version, but not sure where do I update it or where is it failing exactly...

Someone ever had this issue? thanks!

Mario Galic · Accepted Answer · 2018-05-08 20:57:14Z

3

Double check if you are importing elastic4s-jackson:

libraryDependencies += "com.sksamuel.elastic4s" %% "elastic4s-jackson" % "5.6.0"

answered May 8, 2018 at 20:57

Mario Galic

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1 Comment

MNY Over a year ago

I used elastic4s and dont remember was never dealing with elastic4s-jackson...? is that possible? my previous app version was using the same thing but this version I upgraded scala to 2.12, can it be that something changed and now I need it?

YisraelU · Accepted Answer · 2021-01-27 19:37:52Z

0

I have had the exact same issue with play 2.8 and elastic4s 6.7.3 using the jackson module too What helped me was running evicted and looking at the dependencies each library had and figuring out why it cannot load that particular class . ultimately upgrading to 6.7.8 ended up resolving the issue. Also if you look in the buid.sbt file for the elasic4s project it lists all the versions it is using https://github.com/sksamuel/elastic4s/blob/master/build.sbt

answered Jan 27, 2021 at 19:37

YisraelU

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Comments

go30 · Accepted Answer · 2021-06-25 16:53:36Z

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You can use jackson-module-scala and exclude the com.fasterxml.jackson which is referenced in elastic4s-http and verify that com.fasterxml.jackson is available in the libraries/classpath when the application is running.

answered Jun 25, 2021 at 16:53

go30

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