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1. Re: Migrating weblogic ejb2.x application to eap 5
jaikiran Apr 4, 2013 9:10 AM (in response to rohith_jboss)Rohith, welcome to the forums.
rohith pavithran wrote:
We are migrating a product which was developed in Weblogic 8.1.X to JBoss EAP5.X.
1. As this product was there in for a long time code update is considered as a last apporach, which version in eap should we target as part migration? Currently we are checking with EAP5.
EAP6 is the latest version of JBoss EAP and is based on JBoss AS7 http://www.jboss.org/jbossas. I would recommend trying that version which in fact is available for download here http://www.jboss.org/jbossas/downloads. More about recent EAP developments can be found here:
https://community.jboss.org/blogs/mark.little/2013/03/07/eap-binaries-available-for-all-developers
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2. Re: Migrating weblogic ejb2.x application to eap 5
rohith_jboss Apr 5, 2013 12:52 AM (in response to jaikiran)Hi jaikiran,
I was trying the application in JBoss EAP 6.1 alpha. Found that on deployment was giving the below error
09:52:44,931 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-4) MSC00001: Failed to start service jboss.deployment.subunit."XXX.ear"."XXXX.jar".PARSE: org.jboss.msc.service.StartException in service jboss.deployment.subunit."XXXX.ear"."XXXX.jar".PARSE: JBAS018733: Failed to process phase PARSE of subdeployment "XXXX.jar" of deployment "XXXX.ear"
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:127) [jboss-as-server-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.4.GA.jar:1.0.4.GA]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.4.GA.jar:1.0.4.GA]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) [rt.jar:1.6.0_07]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) [rt.jar:1.6.0_07]
at java.lang.Thread.run(Thread.java:619) [rt.jar:1.6.0_07]
Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: JBAS014185: Exception while parsing ejb-jar.xml: /content/XXXX.ear/XXXX.jar/META-INF/ejb-jar.xml
at org.jboss.as.ejb3.deployment.processors.EjbJarParsingDeploymentUnitProcessor.parseEjbJarXml(EjbJarParsingDeploymentUnitProcessor.java:249)
at org.jboss.as.ejb3.deployment.processors.EjbJarParsingDeploymentUnitProcessor.deploy(EjbJarParsingDeploymentUnitProcessor.java:120)
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:120) [jboss-as-server-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
... 5 more
Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[11,12]
Message: Unexpected element 'acknowledge-mode' encountered
at org.jboss.metadata.parser.util.MetaDataElementParser.unexpectedElement(MetaDataElementParser.java:109)
at org.jboss.metadata.ejb.parser.spec.AbstractMetaDataParser.processElement(AbstractMetaDataParser.java:56)
at org.jboss.metadata.ejb.parser.spec.AbstractNamedMetaDataWithDescriptionGroupParser.processElement(AbstractNamedMetaDataWithDescriptionGroupParser.java:67)
at org.jboss.metadata.ejb.parser.spec.AbstractEnterpriseBeanMetaDataParser.processElement(AbstractEnterpriseBeanMetaDataParser.java:85)
at org.jboss.metadata.ejb.parser.spec.AbstractMessageDrivenBeanParser.processElement(AbstractMessageDrivenBeanParser.java:94)
at org.jboss.metadata.ejb.parser.spec.MessageDrivenBean31Parser.processElement(MessageDrivenBean31Parser.java:77)
at org.jboss.metadata.ejb.parser.spec.MessageDrivenBean31Parser.processElement(MessageDrivenBean31Parser.java:37)
at org.jboss.metadata.ejb.parser.spec.AbstractMetaDataParser.processElements(AbstractMetaDataParser.java:69)
at org.jboss.metadata.ejb.parser.spec.MessageDrivenBean31Parser.parse(MessageDrivenBean31Parser.java:44)
at org.jboss.metadata.ejb.parser.spec.EnterpriseBeansMetaDataParser.processElement(EnterpriseBeansMetaDataParser.java:99)
at org.jboss.metadata.ejb.parser.spec.EnterpriseBeansMetaDataParser.processElement(EnterpriseBeansMetaDataParser.java:40)
at org.jboss.metadata.ejb.parser.spec.AbstractMetaDataParser.processElements(AbstractMetaDataParser.java:69)
at org.jboss.metadata.ejb.parser.spec.EnterpriseBeansMetaDataParser.parse(EnterpriseBeansMetaDataParser.java:75)
at org.jboss.metadata.ejb.parser.spec.EnterpriseBeansMetaDataParser.parse(EnterpriseBeansMetaDataParser.java:68)
at org.jboss.metadata.ejb.parser.spec.AbstractEjbJarMetaDataParser.processElement(AbstractEjbJarMetaDataParser.java:112)
at org.jboss.metadata.ejb.parser.spec.AbstractEjbJarMetaDataParser.processElement(AbstractEjbJarMetaDataParser.java:39)
at org.jboss.metadata.ejb.parser.spec.AbstractMetaDataParser.processElements(AbstractMetaDataParser.java:69)
at org.jboss.metadata.ejb.parser.spec.EjbJarMetaDataParser.parseDocument(EjbJarMetaDataParser.java:110)
at org.jboss.metadata.ejb.parser.spec.EjbJarMetaDataParser.parse(EjbJarMetaDataParser.java:54)
at org.jboss.as.ejb3.deployment.processors.EjbJarParsingDeploymentUnitProcessor.parseEjbJarXml(EjbJarParsingDeploymentUnitProcessor.java:246)
... 7 more
Found a defect on same line's in https://issues.jboss.org/browse/JBMETA-349, in below link which mentions that the "Currently EJB 2.0 deployments are not supported"
So what should be approach taken to resolve the same?
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3. Re: Migrating weblogic ejb2.x application to eap 5
sfcoy Apr 7, 2013 1:26 AM (in response to rohith_jboss)Hi Rohith,
You will need to upgrade your ejb deployment descriptors to at least 2.1 (and preferably 3.1) in order to move forward.
Additionally, if your code contains CMP entity beans then migrating these could be a huge task (depending upon how many there are).
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4. Re: Migrating weblogic ejb2.x application to eap 5
rohith_jboss Apr 15, 2013 3:26 AM (in response to sfcoy)The code heavily uses cmp based bean's, is there tool available for conversion.
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5. Re: Migrating weblogic ejb2.x application to eap 5
wdfink Apr 15, 2013 4:17 AM (in response to rohith_jboss)migrate CMP to JPA might be favourable as EJB2 iwill be optional with the next EJB spec.
I did not found toos in my case for migration, we have written a bit sed awk for that to migrate XDoclet annotations to JPA annotations, but there was still a bit manual work.
Another option might be to use a code generator which analyse the DB schema and produce the JPA classes.
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6. Re: Migrating weblogic ejb2.x application to eap 5
rohith_jboss Apr 22, 2013 12:59 AM (in response to rohith_jboss)The migration of application to JBoss EAP 5.1.2 was completed successfully (the configurations where migrated using xslt transformations).
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7. Re: Migrating weblogic ejb2.x application to eap 5
jijopmathew Jul 10, 2013 3:25 AM (in response to rohith_jboss)Hi Rohith,
Could you provide little more details on how the xslt tranformations worked for the migration? Actually we need to migrate a product (EJB 2.1) from Websphere 6.0 to JBoss EAP 5.1.2. Its heavily using CMP Entity Beans. So it could be very helpful if you provide some details or sample code ?
Thanks
Jijo
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8. Re: Migrating weblogic ejb2.x application to eap 5
rohith_jboss Jul 11, 2013 2:00 PM (in response to jijopmathew)xlst transformations where used to update the specific xml configurations from weblogic to jboss. For xslt transformation sample please rerfer below link
https://community.jboss.org/wiki/PortingFromWeblogic
Please find the below link which I found might be usefull