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Jboss 6 persistence.xml startup error

> and here is the error: 2011-04-04 18:35:23,098 ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (WorkerThread#0[]) Error installing to Start: name=persistence

Type xxx is not found (error 301)

The error: Type User is not found (error 301) occurs when I query the db for a type before any instances of that type have been persisted, e.g.: return em.createQuery ("SELECT a FROM User a").getResultList (); What I was expecting was an empty list, not an error. Is there some enhancement

Bad Backups – Null Error when issuing simple query on backup via ObjectDB Explorer

the below error and stack trace in the log. Can you please help us determine the problem and provide a solution? [2022-03-31 18:38:15 #3 *] [ObjectDB 2.7.6] Unexpected exception (Error 990) Generated ... this error on http://www.objectdb.com/database/issue/new com.objectdb.o.InternalException: null com

Unexpected exception (Error 990)

I don't know how to reproduce this error, because I don't know what exactly did trigger it, but I ... exception (Error 990) Generated by Java HotSpot(TM) 64-Bit Server VM 1.7.0_51 (on Windows 8 6.2). Please report this error on http://www.objectdb.com/database/issue/new com.objectdb.o

Does "error 522" (connect timed out) have something to do with restrictions despite license activation?

with multiple foreign keys. Indeed, it returns the following error: Failed to connect to server (connect timed out) (error 522) at com.objectdb.jpa.EMF.createEntityManager(EMF ... /... What is that for? I pasted the link onto the browser, but it returns the 500 error. Ieodaq Daniele Lotti

Attempt to remove a detached entity object (error 613)

Hello, that's a strange error for me ... I have a detached object in my Java code and i just wanted to merge it ... Unfortunatly, i get this error : Failed to commit transaction: Attempt to remove a detached entity object (error 613) at com.objectdb.jpa.EMImpl.commit(EMImpl.java:290) We see in

Error during cascaded merge

) To narrow the problem down I created this simple testcase which triggers the error: @Test ... said before it all worked before the update to _02. Regards Ralph mosi0815 Ralph Moser Merge errors ... object to merge should throw an exception with a clear error message. Unfortunately the fix in build

Query Execution Error

')).contracts.active=true)))) results in "Query Execution Error===null" in Explorer and Internal Exception ... , anyway the error code (NullPointerException seems to occurr) isn't very helpful :( Alex quasado ... .abrechnung.api.model.mitglied.MitgliedDebitorenKontoFragment')).debitor=true)))) -> same error, try

[ObjectDB 2.5.1_05] Unexpected exception (Error 990)

I have this error in log. The query can't return result. Thanks for help. LOG: [ObjectDB 2.5.1_05] Unexpected exception (Error 990) Generated by Java HotSpot(TM) Server VM 1.7.0_55 (on Windows Server 2008 R2 6.1). Please report this error on http://www.objectdb.com/database/issue/new com

Error whilst running

ObjectDB 2.6.0] Unexpected exception (Error 990) Generated by Java HotSpot(TM) 64-Bit Server VM 1.7.0_17 (on Windows 2003 5.2). Please report this error on http://www.objectdb.com/database/issue ... this error, but probably only in very specific cases, since we only have reports from one user

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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