[jira] [Commented] (OPENJPA-1976) EntityManager.find method cause errors

["Rick Curtis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OPENJPA-1976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13017921#comment-13017921 ] 

Rick Curtis commented on OPENJPA-1976:
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Can you post the Entity that are are having problems with along with the full exception stacks?

Thanks,
Rick

> EntityManager.find method cause errors
> --------------------------------------
>
>                 Key: OPENJPA-1976
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1976
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jpa
>    Affects Versions: 2.1.0
>         Environment: Glassfish 3.1, JSF 2.1.0, Apache OpenJPA 2.1.0, MySQL 5.5.10, Eclipse Helios IDE, Windows XP Service Pack 3
>            Reporter: Chuong Pham
>              Labels: features, test
>
> Scenario 1: The EntityManager.find method is unable to pass a String value as its second parameter and caused the following error:
> <openjpa-2.1.0-r422266:1071316 nonfatal user error> org.apache.openjpa.persistence.ArgumentException: The given value "214736890D96ED598E1D3050F1F025A7" cannot be converted into an identity for "com.ckd.model.BookModel".  The value is the wrong type (java.lang.String).
> java.lang.NumberFormatException: For input string: "214736890D96ED598E1D3050F1F025A7"
> It seems from the errors above that the EntityManager.find method will only accept a numeric value as its second parameter.
> Scenario 2: The EntityManager.find method is unable to pass a Long value and caused the following error:
> <openjpa-2.1.0-r422266:1071316 fatal user error> org.apache.openjpa.persistence.ArgumentException: An error occurred while processing registered class "class com.ckd.model.BookModel".
> java.lang.IllegalStateException: WEB9031: WebappClassLoader unable to load resource [org.apache.openjpa.util.LongId], because it has not yet been started, or was already stopped
> The columns used for testing are from a MySQL 5.x table and have the following definitions:
> ID SMALLINT(5)
> HASHID VARCHAR(32)
> The value of HASHID is used to test Scenario 1; while the value of ID is used to test Scenario 2.
> Conclusion: The above scenarios show that the EntityManager.find method is currently unusable/buggy and needs to be investigated for the next release.

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