[hibernate-issues] [Hibernate-JIRA] Commented: (EJB-242) Be more defensive regarding exotic (aka buggy) URL protocol handler

[Michał Kostrzewa (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/EJB-242?page=comments#action_26209 ] 

Michał Kostrzewa commented on EJB-242:
--------------------------------------

I'm not sure how (if) the latest suggestion will work in Java Web Start environment, all the plugins need to be packed here... What do you think?
About test case - I'll try to prepare one, but it may take a while to do suitable and minimal test case, please don't hold your breath... :(


> Be more defensive regarding exotic (aka buggy) URL protocol handler
> -------------------------------------------------------------------
>
>          Key: EJB-242
>          URL: http://opensource.atlassian.com/projects/hibernate/browse/EJB-242
>      Project: Hibernate Entity Manager
>         Type: Improvement

>   Components: EntityManager
>     Versions: 3.2.0.ga
>  Environment: Hibernate 3.2.0 GA, postgres (but I guess not relevant here)
>     Reporter: Michał Kostrzewa
>     Assignee: Emmanuel Bernard
>      Fix For: 3.2.2

>
>
> Hi, 
> Max from user list kindly redirected me to fill a bug here. Here it goes as I described it on list. I didn't attached a test case b/c doing it is non-trivial, maybe you'll just know what is the problem and I provided a patch that works for me. But if test case is needed - I'll do it.
> --------------
> I'm having problems with bundling hibernate and my ejb model in eclipse RCP application. I managed to solve all classloading problems but one, related to InputStreamZippedJarVisitor class. 
> Simplifying things I have: 
> hibernate plugin which registers itself for buddy classloading policy 
> dbmodel plugin which depends on hibernate and is a buddy of hibernate 
> application plugin which depends on hibernate and dbmodel and is a buddy of hibernate. This application plugin has hibernate.cfg.xml in self. 
> When I run this project from eclipse IDE, all is fine except the warning message in logs while creating EntityManager: 
> 2006-10-20 09:07:23 org.hibernate.ejb.packaging.InputStreamZippedJarVisitor doProcessElements 
> WARNING: Unable to find file (ignored): bundleresource://101 
> java.io.FileNotFoundException: C:\Documents and Settings\mkostrze\sv-head2\com.pentacomp.dbmodel (Access denied) 
>    at java.io.FileInputStream.open(Native Method) 
>    at java.io.FileInputStream.<init>(FileInputStream.java:106) 
>    at org.eclipse.osgi.framework.util.SecureAction.getFileInputStream(SecureAction.java:99) 
>    at org.eclipse.osgi.baseadaptor.bundlefile.FileBundleEntry.getInputStream(FileBundleEntry.java:50) 
>    at org.eclipse.osgi.framework.internal.core.BundleURLConnection.connect(BundleURLConnection.java:53) 
>    at org.eclipse.osgi.framework.internal.core.BundleURLConnection.getInputStream(BundleURLConnection.java:99) 
>    at java.net.URL.openStream(URL.java:1007) 
>    at org.hibernate.ejb.packaging.InputStreamZippedJarVisitor.doProcessElements(InputStreamZippedJarVisitor.java:33) 
>    at org.hibernate.ejb.packaging.JarVisitor.getMatchingEntries(JarVisitor.java:215) 
>    at org.hibernate.ejb.Ejb3Configuration.addMetadataFromVisitor(Ejb3Configuration.java:253) 
>    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:229) 
>    at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:120) 
>    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51) 
>    at com.pentacomp.dicom.viewer.ViewerContstants.createEntityManager(ViewerContstants.java:170) 
>    at com.pentacomp.dicom.viewer.DicomViewerMainFrame$InitRepositoriesTask.call(DicomViewerMainFrame.java:146) 
> I suppose hibernate tries to inspect the model jar for some reason, but in IDE this jar location is resolved to directory containing the plugin. 
> But things get worse when I export the project into java webstart application. I'm getting NullPointerException instead of warning in the same place. I investigated the source and the problem is here: 
> protected void doProcessElements() throws IOException { 
>       JarInputStream jis; 
>       try { 
>          jis = new JarInputStream( jarUrl.openStream() ); 
>       } 
>     catch (IOException ze) { 
>          log.warn( "Unable to find file (ignored): " + jarUrl, ze ); 
>          return; 
>       } 
>  
> The jarUrl is a bundleresource:// url which resolves to DirZipBundleEntry which in turn returns null in getInputStream(). Thus JarInputStream thows NPE. 
> Here's what I've tried to solve this: 
> - configure the dbmodel to be unpacked or packed after install 
> - tried dbmodel with jar inside or with unpacked classes inside 
> - set hibernate.archive.autodetection to 'none'. (I did it passing parameters map to createEntityManager method) 
> - change the hibernate sources and replace IOException with Exception in doProcessElement method. This one worked 
> I guess most likely I did something wrong to my deploy - any ideas please? But if not, perhaps such a change in code may make hibernate more robust (?) 
> Hibernate version: 3.2.0 GA 
> best regards, 
> Michal Kostrzewa

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
   http://opensource.atlassian.com/projects/hibernate/secure/Administrators.jspa
-
For more information on JIRA, see:
   http://www.atlassian.com/software/jira