[jboss-dev-forums] [IronJacamar Development] - Problem with Inheritance and javax.resource.spi.work.Work

Sat Apr 7 11:41:17 EDT 2012

Andreas Wurm [https://community.jboss.org/people/andreasw] created the discussion

"Problem with Inheritance and javax.resource.spi.work.Work"

To view the discussion, visit: https://community.jboss.org/message/728756#728756

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While deploying XADisk to JBOSS AS 7.1.1 i encountered some obstacles.

First i encountered exceptions because the ResourceAdapter did not implement equals and hashCode. so i provided them.

|| *Header 1* ||
| 
16:27:33,086 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC00001: Failed to start service jboss.ra.deployer.XADisk: org.jboss.msc.service.StartException in service jboss.ra.deployer.XADisk: JBAS010446: Failed to start RA deployment [XADisk]
at org.jboss.as.connector.metadata.deployment.ResourceAdapterDeploymentService.start(ResourceAdapterDeploymentService.java:103)
at  org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [rt.jar:1.6.0_22]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) [rt.jar:1.6.0_22]
at java.lang.Thread.run(Thread.java:679) [rt.jar:1.6.0_22]
Caused by: org.jboss.jca.deployers.common.DeployException: IJ020056: Deployment failed: file:/opt/jboss-as-7.1.1.Final/standalone/tmp/vfs/temp21defa915e6eedb7/XADisk.rar-4a6847c2a45ad1f0/contents/
at  org.jboss.jca.deployers.common.AbstractResourceAdapterDeployer.createObjectsAndInjectValue(AbstractResourceAdapterDeployer.java:2179)
at  org.jboss.jca.deployers.common.AbstractResourceAdapterDeployer.createObjectsAndInjectValue(AbstractResourceAdapterDeployer.java:1034)
at  org.jboss.as.connector.metadata.deployment.ResourceAdapterDeploymentService$AS7RaDeployer.doDeploy(ResourceAdapterDeploymentService.java:173)
at org.jboss.as.connector.metadata.deployment.ResourceAdapterDeploymentService.start(ResourceAdapterDeploymentService.java:100)
... 5 more
Caused by: org.jboss.jca.validator.ValidatorException: Severity: ERROR
Section: 19.4.2
Description*: A ResourceAdapter must implement a "public boolean equals(Object)" method.*
Code: org.xadisk.connector.XADiskResourceAdapter

Severity: ERROR
Section: 19.4.2
Description: *A ResourceAdapter must implement a "public int hashCode()" method.*
Code: org.xadisk.connector.XADiskResourceAdapter |

Next Exception:

|| *Header 1* ||
|  16:34:02,892 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-2) JBAS015876: Starting deployment of "XADisk.rar"
16:34:03,193 INFO [org.jboss.as.deployment.connector] (MSC service thread 1-8) JBAS010406: Registered connection factory java:global/XADiskCF
16:34:03,282 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-8) MSC00001: Failed to start service jboss.ra.deployment."XADisk.rar_1": org.jboss.msc.service.StartException in service jboss.ra.deployment."XADisk.rar_1": org.jboss.msc.service.StartException in anonymous service: JBAS010446: Failed to start RA deployment [XADisk]
at org.jboss.as.connector.metadata.deployment.ResourceAdapterXmlDeploymentService.start(ResourceAdapterXmlDeploymentService.java:127)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [rt.jar:1.6.0_22]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) [rt.jar:1.6.0_22]
at java.lang.Thread.run(Thread.java:679) [rt.jar:1.6.0_22]
Caused by: org.jboss.msc.service.StartException in anonymous service: JBAS010446: Failed to start RA deployment [XADisk]
at org.jboss.as.connector.metadata.deployment.ResourceAdapterXmlDeploymentService.start(ResourceAdapterXmlDeploymentService.java:111)
... 5 more
Caused by: org.jboss.jca.deployers.common.DeployException: IJ020051: Unable to start org.xadisk.connector.XADiskResourceAdapter
at org.jboss.jca.deployers.common.AbstractResourceAdapterDeployer.startContext(AbstractResourceAdapterDeployer.java:350)
at org.jboss.jca.deployers.common.AbstractResourceAdapterDeployer.createObjectsAndInjectValue(AbstractResourceAdapterDeployer.java:2139)
at org.jboss.as.connector.metadata.deployment.ResourceAdapterXmlDeploymentService$AS7RaXmlDeployer.doDeploy(ResourceAdapterXmlDeploymentService.java:178)
at org.jboss.as.connector.metadata.deployment.ResourceAdapterXmlDeploymentService.start(ResourceAdapterXmlDeploymentService.java:104)
... 5 more
Caused by: javax.resource.spi.ResourceAdapterInternalException: org.xadisk.filesystem.exceptions.XASystemBootFailureException: The XADisk instance has encoutered a critial issue and could not be booted. Such a condition is very rare. If you think you have setup everything right for XADisk to work, please consider discussing in XADisk forums, or raising a bug with details.
at org.xadisk.connector.XADiskResourceAdapter.start(XADiskResourceAdapter.java:40)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_22]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.6.0_22]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.6.0_22]
at java.lang.reflect.Method.invoke(Method.java:616) [rt.jar:1.6.0_22]
at org.jboss.jca.deployers.common.AbstractResourceAdapterDeployer.startContext(AbstractResourceAdapterDeployer.java:346)
... 8 more
Caused by: org.xadisk.filesystem.exceptions.XASystemBootFailureException: The XADisk instance has encoutered a critial issue and could not be booted. Such a condition is very rare. If you think you have setup everything right for XADisk to work, please consider discussing in XADisk forums, or raising a bug with details.
at org.xadisk.filesystem.NativeXAFileSystem.<init>(NativeXAFileSystem.java:186)
at org.xadisk.filesystem.NativeXAFileSystem.bootXAFileSystem(NativeXAFileSystem.java:202)
at org.xadisk.connector.XADiskResourceAdapter.start(XADiskResourceAdapter.java:38)
... 13 more
Caused by: *javax.resource.spi.work.WorkException: org.xadisk.filesystem.workers.DeadLockDetector: Run method is not defined*
at org.jboss.jca.core.workmanager.WorkManagerImpl.verifyWorkMethods(WorkManagerImpl.java:716)
at org.jboss.jca.core.workmanager.WorkManagerImpl.verifyWork(WorkManagerImpl.java:681)
at org.jboss.jca.core.workmanager.WorkManagerImpl.checkAndVerifyWork(WorkManagerImpl.java:656)
at org.jboss.jca.core.workmanager.WorkManagerImpl.startWork(WorkManagerImpl.java:378)
at org.xadisk.filesystem.NativeConcurrencyControl.<init>(NativeConcurrencyControl.java:41)
at org.xadisk.filesystem.NativeXAFileSystem.<init>(NativeXAFileSystem.java:164)
... 15 more |

Im interested in why a resource adapter has to override equals.

Also I think the validation of the WorkMethods is not correct. The WorkManager verifies if the 2 Methods of javax.resource.spi.work.Work are implemented in the class.
In the described case both methods were implemented in a superclass of DeadLockDetector, so they were there.
To get things working, I had to implement the methods and delegate to their superclass.
The current implementation denies inheritance, is this the desired behaviour?
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