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https://issues.apache.org/jira/browse/TOMEE-2223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16587880#comment-16587880
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Romain Manni-Bucau commented on TOMEE-2223:
-------------------------------------------
ou deploy an ear? Any chance you get duplicated classes in your classpath? Can
lead to that too.
> Incorrect JPA entity used when running under docker
> ---------------------------------------------------
>
> Key: TOMEE-2223
> URL: https://issues.apache.org/jira/browse/TOMEE-2223
> Project: TomEE
> Issue Type: Bug
> Components: TomEE Core Server
> Affects Versions: 7.0.5
> Environment: * Docker version 17.12.1-ce, build 7390fc6;
> * Official Ubuntu 18.04 (x64) docker image with OpenJDK 8 installed;
> * apache-tomee-webprofile-7.0.5;
> * Apache Derby 10.14.2.0 (embedded);
> Reporter: Fabio Jun Takada Chino
> Priority: Minor
>
> While packing a very simple web application inside a docker container based
> on the official Ubuntu 18.04 image, I found a very inconvenient error related
> to OpenJPA using the wrong entity to access the database.
> When it happens, the following exception can be found in the log:
> {{org.apache.openjpa.persistence.ArgumentException : The given value "test"
> cannot be converted into an identity for "class EntityB". The value is the
> wrong type (java.lang.String)}}{{ using the wrong entity to store information
> inside}}
> The major problem with this code is that the actual method is trying to
> access the entity EntityA instead of EntityB. The conversion error occurs
> because the ID for EntityB is a composite value while the ID for EntityA is
> indeed a string.
> Given that, I tried to trace the issue using a remote debugger but, when I
> activate, the problem vanishes. It does not matter if the debugger is
> connected or not. Since it is not a critical application, I can workaround it
> by leaving the remote debugger enabled but it would be a real issue for
> production environment.
> The docker image I'm using as the base can be found in the Docker Hub with
> the name opencs/ubuntu-openjdk-8-headless.
> The application is a single WAR file with some EJBs, JPA entities, a few
> servlets and a few JSF pages. Almost all JPA entities have single primary
> keys but one of them have a composite key with 2 strings.
> Thanks in advance,
>
>
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