[jbosstools-issues] [JBoss JIRA] Resolved: (JBIDE-4369) Issues with BIRT classloader

[Snjezana Peco (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBIDE-4369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Snjezana Peco resolved JBIDE-4369.
----------------------------------

    Fix Version/s: 3.1.0.CR1
                       (was: LATER)
       Resolution: Done


The problems described here have been resolved in BIRT 2.5.1 by fixing the context classloader in the DataSetEditor class.
BIRT >= 2.5.2 v20091127-0630 fixes the issue of adding libraries from all the workspace projects to the classpath.

> Issues with BIRT classloader
> ----------------------------
>
>                 Key: JBIDE-4369
>                 URL: https://jira.jboss.org/jira/browse/JBIDE-4369
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: birt, UpStream
>    Affects Versions: 3.0.0.GA
>            Reporter: Snjezana Peco
>            Assignee: Snjezana Peco
>            Priority: Critical
>             Fix For: 3.1.0.CR1
>
>         Attachments: log1.txt, log2.txt
>
>
> Steps to reproduce:
> 1) create a new Seam Web Project with the "BIRT Reporting Runtime Component" facet
> 2) call "Generates Seam Entities" and create some entities
> 3) create a BIRT report
> 4) restart Eclipse
> 5) add JBoss Hibernate Data Source and click Test Connection
> You will get the "Could not create JPA based Configuration" error (Problem 1). Attached is log1.txt
> If you build a session factory using the Hibernate Configuration view in the Hibernate perspective, you will be able to create a data source (5) and data set(6)
> 6) create Hibernate Data Set
> 7) call the Previews Result tab in the Edit Data Set dialog
> 8) call "Generate Seam Entities" and click "Refresh" on the second page of the wizard
> You will get the "<Couldn't connect to Database>" error (Problem 2).
> 9) try to open *.xhtml file using the VPE editor
> You will get an error (attached log2.txt). Sometimes Eclipse freezes (Problem 3).
> There are two issues related to the BIRT engine:
> - https://bugs.eclipse.org/bugs/show_bug.cgi?id=258574 
> I have created a patch for this issue.
> - an issue in DataSetEditor.ItemModelHandler. BIRT sets a context classloader in this class, but doesn't revert the old context classloader. The issue exists in BIRT 2.3.1 and BIRT 2.5.0M7. It is fixed in the current CVS.
> BIRT creates a classloader using libraries from all the projects in the workspace including thirdparty-all.jar from the *-test project that contains an incompatible xerces version (which causes problems 2 and 3). The BIRT classloader returns the META-INF/persistence.xml file multiple times because multiple instances of the EJB's source folder are in the classpath (which causes problem 1).

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