Axon ivy Docker Java referenced class not found exception

Question

Hi Ivy team,

I use axon ivy version 7.3.1(Designer and Engine), maven 3.6.2 I've create a dialog form with "add new" button, when user click that button, it will call a method in Java class.

after run and build with maven, I have a "xxx-app-1.0.0-SNAPSHOT.iar".

I copy this file to deploy folder of "AxonIvyEngine7.3.1.1904101154_All_x64" and run Engine and then run web app . everything is ok when I click "add new" button

But when I copy that file :"xxx-app-1.0.0-SNAPSHOT.iar" in docker file :

   FROM axonivy/axonivy-engine:7.3.1
   LABEL maintainer="xxxx@abc.com"
   COPY --chown=ivy:ivy target/xxx-app-1.0.0-SNAPSHOT.iar deploy/    ( this command will copy xxx-app-1.0.0-SNAPSHOT.iar to deploy folder on container )
   EXPOSE 8080

and then I create a docker-compose file

version: '3.3'
 services:
  axonivy-engine:
    image: my-app-test    
    build: .
    ports:
     - 8082:8080
    restart: always

Run docker-compose up
Run web app and then click "add new" button. I've get a errors:

Errorrs:

Caused by: ch.ivyteam.ivy.scripting.exceptions.classDef.ReferencedClassNotFoundException: Referenced class 'com/axonivy/persistence/beans/GenericEntity' not found for class 'controller.AddNew'

I don't why with same a file IAR but when I run it on local it run well and doesn't through any errors .But after run from docker container the UI still appear ok, but when user click button, it call method in java class then through errors

I've check in zip file on "work" folder in Engine in docker container it still exist all file java class

can you guy help me please

my iar file:

link text

Accepted Answer

2

You're IAR defines additional deps:

<dependencies> 
<dependency> 
<groupid>com.axonivy</groupid> 
<artifactid>persistence</artifactid> 
<version>0.0.1</version> 
</dependency>
</dependencies>

You must add JAR dependencies from maven with your IAR: otherwise they will not be accessible to the engine

https://answers.axonivy.com/questions/2089/add-library-with-pom-xml

link

answered 27.11.2019 at 04:23

Reguel Werme... ♦♦
9.4k●3●19●58
accept rate: 70%

edited 27.11.2019 at 04:24

I added before deployed, the problem only happen after I run web app through docker container

(27.11.2019 at 05:07) tuannv

1

Well the docker deployment must be self contained. I don't know how you added it - but the logs show that the engine class loader can't find your artifacts that you have "added before".

However, I do not see any advantage in somehow copying necessary artifacts in an non standard way. Just include in in the IAR as you should always do it. This is best practice , not only for docker engines. It leads to deterministic deployment scenarios.

(27.11.2019 at 05:23) Reguel Werme... ♦♦

Hi Reguel Werme. thank you a lot for your answer. about how do I added persistent before --> I added dependency on Pom file and then use maven clean install to get dependency

(27.11.2019 at 20:44) tuannv

Hi Ivy team, today, I decided upgrade axon ivy to 7.4 and every thing is ok on this version

thank you guys for support

(27.11.2019 at 22:10) tuannv

dependent pom files must be include on the IAR file and added to it's classpath. It's good practice to resolve them from MAVEN (pom.xml dep declaration), copy them with maven-dependency-plugin into the project (but do not put them to SCM), add them to classpath manually. see the link posted: https://answers.axonivy.com/questions/2089/add-library-with-pom-xml

(28.11.2019 at 02:45) Reguel Werme... ♦♦

@tuanvv why do you pretend that the issue is fixed by migrating to 7.4 and afterwards create a new answer to the same problem? Now we have 3 questions for one library maven issues. And you mix docker and version migration problem into it : but it starts as and stays a simple maven library missunderstanding.

(28.11.2019 at 03:09) Reguel Werme... ♦♦

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Axon ivy Docker Java referenced class not found exception

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