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https://issues.apache.org/jira/browse/FALCON-2107?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Balu Vellanki resolved FALCON-2107.
-----------------------------------
Resolution: Fixed
Fix Version/s: trunk
Issue resolved by pull request 254
[https://github.com/apache/falcon/pull/254]
> NPE in FalconWorkflowEngine::isActive() method when FalconJPAService is not
> used
> --------------------------------------------------------------------------------
>
> Key: FALCON-2107
> URL: https://issues.apache.org/jira/browse/FALCON-2107
> Project: Falcon
> Issue Type: Bug
> Affects Versions: 0.10
> Reporter: Balu Vellanki
> Assignee: Balu Vellanki
> Priority: Blocker
> Fix For: trunk, 0.10
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> When attempting any schedulable entity actions, Falcon is attempting to do
> getNativeWorkflowEngine().isActive(entity) -- which throws an NPE when
> FalconJPAService is not enabled in startup.properties.
> {code}
> falcon:DELETE//entities/delete/process/rawEmailIngestProcess] ~ Unable to
> reach workflow engine for deletion or deletion failed
> (AbstractEntityManager:287)
> java.lang.NullPointerException
> at
> org.apache.falcon.service.FalconJPAService.getEntityManager(FalconJPAService.java:168)
> at
> org.apache.falcon.state.store.jdbc.JDBCStateStore.getEntityManager(JDBCStateStore.java:495)
> at
> org.apache.falcon.state.store.jdbc.JDBCStateStore.getEntityBean(JDBCStateStore.java:113)
> at
> org.apache.falcon.state.store.jdbc.JDBCStateStore.getEntityByKey(JDBCStateStore.java:101)
> at
> org.apache.falcon.state.store.jdbc.JDBCStateStore.entityExists(JDBCStateStore.java:126)
> at
> org.apache.falcon.workflow.engine.FalconWorkflowEngine.isActive(FalconWorkflowEngine.java:113)
> at
> org.apache.falcon.workflow.WorkflowEngineFactory.getWorkflowEngine(WorkflowEngineFactory.java:54)
> at
> org.apache.falcon.resource.AbstractEntityManager.getWorkflowEngine(AbstractEntityManager.java:1325)
> at
> org.apache.falcon.resource.AbstractEntityManager.delete(AbstractEntityManager.java:274)
> at
> org.apache.falcon.resource.AbstractEntityManager.delete(AbstractEntityManager.java:257)
> {code}
> Confirmed with [~pallavi.rao] that the optimal solution is to catch NPE and
> return false in the isActive(...) method.
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