[hibernate-dev] Trying Hibernate 5.0.0.Beta1

Steve Ebersole steve at hibernate.org
Tue Mar 31 19:36:09 EDT 2015 

Ahh, seems this may be an option to work around it:

<quote>
Using the general *Map* interface in place of the concrete
*ConcurrentHashMap* type here side-steps the coupling to the Java 8 return
type and will allow this code to be compiled with Java 8 and run on Java 7.
</quote>

I had missed that part.


On Tue, Mar 31, 2015 at 6:34 PM, Steve Ebersole <steve at hibernate.org> wrote:

> When I say "internal" here, I mean internal to java classes.
>
> On Tue, Mar 31, 2015 at 6:30 PM, Steve Ebersole <steve at hibernate.org>
> wrote:
>
>> Nope.  It just effects any code compiled with Java 8 even though the
>> change is internal.  The problem is the generated bytecode incorporates
>> this change.   Like I said, this should be compiled with 1.6 compatibility,
>> but that is apparently not working atm.  I am having a struggle getting a
>> mixed JDK build working "just right".
>>
>> On Tue, Mar 31, 2015 at 6:28 PM, Petar Tahchiev <paranoiabla at gmail.com>
>> wrote:
>>
>>> According to this:
>>>
>>> https://gist.github.com/AlainODea/1375759b8720a3f9f094
>>>
>>> Notably the Java 1.7 *ConcurrentHashMap#keySet()* returns a Set<K> while
>>> the 1.8*ConcurrentHashMap#keySet()* returns a
>>> ConcurrentHashMap.KeySetView<K,V>`.
>>>
>>> I think you're using some Java8 API.
>>>
>>>
>>> 2015-04-01 2:25 GMT+03:00 Petar Tahchiev <paranoiabla at gmail.com>:
>>>
>>>> petar at petar-ThinkPad-X1-Carbon:~$ java -version
>>>> java version "1.7.0_71"
>>>> Java(TM) SE Runtime Environment (build 1.7.0_71-b14)
>>>> Java HotSpot(TM) 64-Bit Server VM (build 24.71-b01, mixed mode)
>>>> petar at petar-ThinkPad-X1-Carbon:~$ uname -a
>>>> Linux petar-ThinkPad-X1-Carbon 3.16.0-33-generic #44-Ubuntu SMP Thu Mar
>>>> 12 12:19:35 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
>>>> petar at petar-ThinkPad-X1-Carbon:~$
>>>>
>>>>
>>>> 2015-04-01 2:21 GMT+03:00 Steve Ebersole <steve at hibernate.org>:
>>>>
>>>>> What JRE are you trying to use?  This error:
>>>>>
>>>>> java.lang.NoSuchMethodError: java.util.concurrent.
>>>>> ConcurrentHashMap.keySet()Ljava/util/concurrent/
>>>>> ConcurrentHashMap$KeySetView;
>>>>>
>>>>> is indicative of an issue in cross-jre support due to a change
>>>>> internal to java classes.
>>>>>
>>>>>
>>>>> On Tue, Mar 31, 2015 at 6:03 PM, Petar Tahchiev <paranoiabla at gmail.com
>>>>> > wrote:
>>>>>
>>>>>> Thanks Steve,
>>>>>>
>>>>>> I managed to migrate my configuration to the new
>>>>>> MetamodelImplementor. Now when I run the scema export I get a lot of these
>>>>>> warning:
>>>>>>
>>>>>> INFO : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
>>>>>> WARN : JDBC Driver reports it stores quoted identifiers in both mixed
>>>>>> and upper case
>>>>>> WARN : HHH000072: Duplicate joins for class:
>>>>>> com.xxx.platform.core.model.cms.AbstractPageModel
>>>>>> WARN : HHH000072: Duplicate joins for class:
>>>>>> com.xxx.platform.module.invoice.core.model.InvoicePageModel
>>>>>> WARN : HHH000072: Duplicate joins for class:
>>>>>> com.xxx.platform.core.model.batch.BatchStepExecutionContextModel
>>>>>> WARN : HHH000072: Duplicate joins for class:
>>>>>> com.xxx.platform.core.model.batch.BatchJobExecutionContextModel
>>>>>> WARN : HHH000072: Duplicate joins for class:
>>>>>> com.xxx.platform.module.search.core.model.SearchKeywordRedirectModel
>>>>>> WARN : HHH000072: Duplicate joins for class:
>>>>>> com.xxx.platform.module.search.core.model.SearchPageRedirectModel
>>>>>> WARN : HHH000072: Duplicate joins for class:
>>>>>> com.xxx.platform.module.promotion.core.model.PromotionModel
>>>>>>
>>>>>> and when I run some test I get the following exception:
>>>>>> java.lang.NoSuchMethodError:
>>>>>> java.util.concurrent.ConcurrentHashMap.keySet()Ljava/util/concurrent/ConcurrentHashMap$KeySetView;
>>>>>>     at
>>>>>> org.hibernate.internal.SessionFactoryImpl.iterateEntityNameResolvers(SessionFactoryImpl.java:733)
>>>>>>     at
>>>>>> org.hibernate.internal.SessionImpl$CoordinatingEntityNameResolver.resolveEntityName(SessionImpl.java:2470)
>>>>>>     at
>>>>>> org.hibernate.internal.SessionImpl.guessEntityName(SessionImpl.java:1992)
>>>>>>     at
>>>>>> org.hibernate.internal.SessionImpl.getEntityPersister(SessionImpl.java:1485)
>>>>>>     at
>>>>>> org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:163)
>>>>>>     at
>>>>>> org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:85)
>>>>>>     at
>>>>>> org.hibernate.internal.SessionImpl.fireMerge(SessionImpl.java:882)
>>>>>>     at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:864)
>>>>>>     at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:869)
>>>>>>     at
>>>>>> org.hibernate.jpa.spi.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:1196)
>>>>>>     at
>>>>>> org.springframework.batch.item.database.JpaItemWriter.doWrite(JpaItemWriter.java:104)
>>>>>>     at
>>>>>> org.springframework.batch.item.database.JpaItemWriter.write(JpaItemWriter.java:83)
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> 2015-04-01 1:23 GMT+03:00 Steve Ebersole <steve at hibernate.org>:
>>>>>>
>>>>>>> I am told that the bug does not affect the JBoss->Central sync
>>>>>>> process.  So at some point the artifacts should all be available in Central
>>>>>>>
>>>>>>> On Tue, Mar 31, 2015 at 5:19 PM, Steve Ebersole <steve at hibernate.org
>>>>>>> > wrote:
>>>>>>>
>>>>>>>> hibernate-core seems to be the only artifact that is available in
>>>>>>>> JBoss Nexus.
>>>>>>>>
>>>>>>>> On Tue, Mar 31, 2015 at 5:18 PM, Steve Ebersole <
>>>>>>>> steve at hibernate.org> wrote:
>>>>>>>>
>>>>>>>>> So apparently the artifacts / repo issue is a Nexus bug that is
>>>>>>>>> effecting the JBoss repo (and therefore us)...
>>>>>>>>> http://issues.sonatype.org/browse/NEXUS-7654
>>>>>>>>>
>>>>>>>>> As I pointed out in the announcement, I am managing the "migration
>>>>>>>>> guide" in source repo while I develop the Betas.  See
>>>>>>>>> https://github.com/hibernate/hibernate-orm/blob/master/working-5.0-migration-guide.md
>>>>>>>>>  As far are the new bootstrapping apis, see
>>>>>>>>> http://docs.jboss.org/hibernate/orm/5.0/topical/html/bootstrap/NativeBootstrapping.html
>>>>>>>>> and
>>>>>>>>> http://docs.jboss.org/hibernate/orm/5.0/topical/html/bootstrap/LegacyBootstrapping.html
>>>>>>>>>
>>>>>>>>> On Tue, Mar 31, 2015 at 5:07 PM, Petar Tahchiev <
>>>>>>>>> paranoiabla at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> Hi guys,
>>>>>>>>>>
>>>>>>>>>> I just tried the latest beta and I cannot compile my project.
>>>>>>>>>> With the
>>>>>>>>>> latest hibernate 4.3.X I was able to do this:
>>>>>>>>>> -------
>>>>>>>>>>         final org.hibernate.cfg.Configuration configuration =
>>>>>>>>>> getHibernateConfiguration();
>>>>>>>>>>         configuration.buildMappings();
>>>>>>>>>>         final SchemaUpdate schemaUpdate = new
>>>>>>>>>> SchemaUpdate(configuration);
>>>>>>>>>> -------
>>>>>>>>>>
>>>>>>>>>> however it seems that the SchemaUpdate constructor has been
>>>>>>>>>> removed and now
>>>>>>>>>> a new one is added:
>>>>>>>>>> --------
>>>>>>>>>>     public SchemaUpdate(MetadataImplementor metadata) {
>>>>>>>>>>         this(
>>>>>>>>>> metadata.getMetadataBuildingOptions().getServiceRegistry(),
>>>>>>>>>> metadata );
>>>>>>>>>>     }
>>>>>>>>>> ---------
>>>>>>>>>>
>>>>>>>>>> Also the configuration.buildMappings() method has been
>>>>>>>>>> deprecated. Where do
>>>>>>>>>> I get the MetadataImplementor from? Also is there any changelog I
>>>>>>>>>> can refer
>>>>>>>>>> to?
>>>>>>>>>>
>>>>>>>>>> Thanks.
>>>>>>>>>> --
>>>>>>>>>> Regards, Petar!
>>>>>>>>>> Karlovo, Bulgaria.
>>>>>>>>>> ---
>>>>>>>>>> Public PGP Key at:
>>>>>>>>>>
>>>>>>>>>> https://keyserver1.pgp.com/vkd/DownloadKey.event?keyid=0x19658550C3110611
>>>>>>>>>> Key Fingerprint: A369 A7EE 61BC 93A3 CDFF  55A5 1965 8550 C311
>>>>>>>>>> 0611
>>>>>>>>>> _______________________________________________
>>>>>>>>>> hibernate-dev mailing list
>>>>>>>>>> hibernate-dev at lists.jboss.org
>>>>>>>>>> https://lists.jboss.org/mailman/listinfo/hibernate-dev
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Regards, Petar!
>>>>>> Karlovo, Bulgaria.
>>>>>> ---
>>>>>> Public PGP Key at:
>>>>>> https://keyserver1.pgp.com/vkd/DownloadKey.event?keyid=0x19658550C3110611
>>>>>> Key Fingerprint: A369 A7EE 61BC 93A3 CDFF  55A5 1965 8550 C311 0611
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Regards, Petar!
>>>> Karlovo, Bulgaria.
>>>> ---
>>>> Public PGP Key at:
>>>> https://keyserver1.pgp.com/vkd/DownloadKey.event?keyid=0x19658550C3110611
>>>> Key Fingerprint: A369 A7EE 61BC 93A3 CDFF  55A5 1965 8550 C311 0611
>>>>
>>>
>>>
>>>
>>> --
>>> Regards, Petar!
>>> Karlovo, Bulgaria.
>>> ---
>>> Public PGP Key at:
>>> https://keyserver1.pgp.com/vkd/DownloadKey.event?keyid=0x19658550C3110611
>>> Key Fingerprint: A369 A7EE 61BC 93A3 CDFF  55A5 1965 8550 C311 0611
>>>
>>
>>
>

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