TransactionConflictException during ant osb project export

Question

Hey,
I am getting more and more failed ant exports of osb projects.
Searching on com.bea.wli.config.transaction.TransactionConflictException doesnt give any hits whatsoever, i suspect however something is going wrong with the eclipse workspace or something.
It is running on a dedicated machine so workspace being locked or something. Even fetching deleting the workspace and pulling anew from the SVN doesn't resolve this.
Synchronizing "OSB-[xxxx]_configuration"...
[java] <Apr 26, 2013 10:53:39 AM CEST> <Warning> <ConfigFwk> <BEA-000000> <Setting transaction '13' as rollback only. Rollback reason:
[java] com.bea.wli.config.transaction.TransactionConflictException: Transaction ALSB Resource Synchronization conflicts with ALSB Resource Synchronization for transactional resource lazy value cache and will be rolledback
[java]      at com.bea.wli.config.transaction.TransactionManager.testConflict(TransactionManager.java:1361)
[java]      at com.bea.wli.config.transaction.TransactionManager.enlistAsRead(TransactionManager.java:981)
[java]      at com.bea.wli.config.transaction.CopyOnWriteTransactionalOwner.getState(CopyOnWriteTransactionalOwner.java:65)
[java]      at com.bea.wli.config.transaction.TransactionalMap.containsKey(TransactionalMap.java:72)
[java]      at com.bea.wli.config.component.impl.LazyValueCache.containsKey(LazyValueCache.java:105)
[java]      at com.bea.wli.config.component.impl.ComponentTypeImpl.exists(ComponentTypeImpl.java:738)
[java]      at com.bea.wli.config.impl.ConfigContextImpl.exists(ConfigContextImpl.java:917)
[java]      at com.bea.wli.config.component.impl.ComponentTypeImpl.validateForCreate(ComponentTypeImpl.java:428)
[java]      at com.bea.wli.config.component.impl.ComponentTypeImpl.createBare(ComponentTypeImpl.java:877)
[java]      at com.bea.wli.config.component.impl.ComponentTypeImpl.create(ComponentTypeImpl.java:860)
[java]      at com.bea.wli.config.task.impl.CreateResourceTask._execute(CreateResourceTask.java:97)
[java]      at com.bea.wli.config.task.impl.SessionedTask.doExecute(SessionedTask.java:228)
[java]      at com.bea.wli.config.task.impl.SessionedTask.doExecute(SessionedTask.java:191)
[java]      at com.bea.wli.config.task.impl.CreateResourceTask.createResource(CreateResourceTask.java:82)
[java]      at com.bea.alsb.core.internal.config.synchronize.tasks.UpdateResourceTask.execute0(Unknown Source)
[java]      at com.bea.alsb.core.internal.config.synchronize.tasks.AbstractSynchronizerTask._execute(Unknown Source)
[java]      at com.bea.alsb.core.internal.config.synchronize.tasks.ExecutionTask._execute(Unknown Source)
[java]      at com.bea.wli.config.task.impl.SessionedTask$1.execute(SessionedTask.java:233)
[java]      at com.bea.wli.config.transaction.TransactionalTask._doExecute(TransactionalTask.java:217)
[java]      at com.bea.wli.config.transaction.TransactionalTask._doExecuteWithRetry(TransactionalTask.java:162)
[java]      at com.bea.wli.config.transaction.TransactionalTask.doExecute(TransactionalTask.java:142)
[java]      at com.bea.wli.config.task.impl.SessionedTask.doExecute(SessionedTask.java:236)
[java]      at com.bea.wli.config.task.impl.SessionedTask.doExecute(SessionedTask.java:191)
[java]      at com.bea.alsb.core.internal.config.synchronize.AbstractSynchronizer.executeEx(Unknown Source)
[java]      at com.bea.alsb.core.internal.config.synchronize.AbstractSynchronizer.execute(Unknown Source)
[java]      at com.bea.alsb.core.internal.config.synchronize.DeltaSynchronizer.run(Unknown Source)
[java]      at com.bea.alsb.core.internal.config.synchronize.DeltaSynchronizer.run(Unknown Source)
[java]      at com.bea.alsb.core.internal.config.synchronize.SynchronizerService.run0(Unknown Source)
[java]      at com.bea.alsb.core.internal.config.synchronize.SynchronizerService.access$2(Unknown Source)
[java]      at com.bea.alsb.core.internal.config.synchronize.SynchronizerService$1.run(Unknown Source)
[java]      at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1975)
[java]      at com.bea.alsb.core.internal.config.synchronize.SynchronizerService.runInWorkspace(Unknown Source)
[java]      at com.bea.alsb.core.internal.config.synchronize.SynchronizerService.run(Unknown Source)
[java]      at com.bea.alsb.core.internal.config.synchronize.SynchronizerService$Synchronizer.resourceChanged(Unknown Source)
[java]      at org.eclipse.core.internal.events.NotificationManager$2.run(NotificationManager.java:291)
[java]      at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
[java]      at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:285)
[java]      at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:149)
[java]      at org.eclipse.core.internal.resources.Workspace.broadcastBuildEvent(Workspace.java:311)
[java]      at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:140)
[java]      at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:242)
[java]      at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Ant export process:
     <target name="export" depends="export.generic">
          <antcall target="deleteOldJar" />
          <antcall target="deleteMetadata" />
          <echo message="config.project: ${config.project} configJar: ${basedir}/${config.jar} config.subprojects ${config.subprojects}"/>
          <java dir="${eclipse.home}" jar="${eclipse.home}/plugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar" fork="true" failonerror="false" maxmemory="768m">
                    <arg line="-data ${workspace.dir}" />
                    <arg line="-application com.bea.alsb.core.ConfigExport" />
                    <arg line="-configProject ${config.project}" />
                    <arg line="-configJar ${basedir}/${config.jar}" />
                    <arg line="-configSubProjects ${config.subprojects}"/>
                    <sysproperty key="com.bea.plateng.common.util.logging.useJDKlogger" value="true" />
                    <sysproperty key="weblogic.home" value="${weblogic.home}"/>
          <sysproperty key="osb.home" value="${osb.home}"/>
          <sysproperty key="osgi.bundlefile.limit" value="2000"/>
          <sysproperty key="harvester.home" value="${osb.home}/harvester"/>
          <sysproperty key="osgi.nl" value="en_US"/>
          <sysproperty key="sun.lang.ClassLoader.allowArraySyntax" value="true"/>
               </java>
          <tstamp/>
          <copy failonerror="false" file="${metadata.dir}/.log" tofile="${log}/metadata${DSTAMP}${TSTAMP}.log"/>
          <antcall target="deleteMetadata" />
          <delete file="${workspace.dir}/${config.project}/.settings/com.bea.alsb.core.prefs"/>
     </target>
Any help is much appreciated!

Answer 1

Oracle provides prebuilt code for OSB migration
you may refer to following
http://biemond.blogspot.in/2010/07/osb-11g-ant-deployment-scripts.html
http://docs.oracle.com/cd/E21764_01/doc.1111/e15022/app_config.htm#i1012336
http://docs.oracle.com/cd/E21764_01/doc.1111/e15022/bestprac.htm#sthref44