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https://issues.apache.org/jira/browse/VELOCITY-965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claude Brisson closed VELOCITY-965.
-----------------------------------
Fix Version/s: 2.4
Assignee: Claude Brisson
Resolution: Fixed
See commit 6c85ffe2
> Velocity 1.7 vs velocity 2.3: Getting thread synchronization issue
> ------------------------------------------------------------------
>
> Key: VELOCITY-965
> URL: https://issues.apache.org/jira/browse/VELOCITY-965
> Project: Velocity
> Issue Type: Bug
> Components: Engine
> Affects Versions: 2.3
> Reporter: Amrit
> Assignee: Claude Brisson
> Priority: Major
> Fix For: 2.4
>
>
> Recently we migrated from Velocity 1.7 to Velocity 2.3. We see the below
> error intermittently which is a possible thread synchronization issue with
> Velocity Engine. The resultset is getting closed while another thread is
> making use of it.
> {noformat}
> 2023-04-15 10:36:33.472 ERROR [org.apache.velocity.loader.ds]
> {344} - DataSourceResourceLoader: database problem while getting timestamp of
> 'xyz_abc':
> java.sql.SQLException: Closed Resultset: next
> at
> oracle.jdbc.driver.InsensitiveScrollableResultSet.ensureOpen(InsensitiveScrollableResultSet.java:109)
> ~[ojdbc8.jar:12.2.0.1.0]
> at
> oracle.jdbc.driver.InsensitiveScrollableResultSet.next(InsensitiveScrollableResultSet.java:398)
> ~[ojdbc8.jar:12.2.0.1.0]
> at
> weblogic.jdbc.wrapper.ResultSet_oracle_jdbc_driver_ForwardOnlyResultSet.next(Unknown
> Source) ~[CodeGenerator.class:12.2.1.3]
> at
> org.apache.velocity.runtime.resource.loader.DataSourceResourceLoader.readLastModified(DataSourceResourceLoader.java:326)
> ~[velocity-engine-core-2.3.jar:2.3]
> at
> org.apache.velocity.runtime.resource.loader.DataSourceResourceLoader.getLastModified(DataSourceResourceLoader.java:240)
> ~[velocity-engine-core-2.3.jar:2.3]
> at
> org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:446)
> ~[velocity-engine-core-2.3.jar:2.3]
> at
> org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:346)
> ~[velocity-engine-core-2.3.jar:2.3]
> at
> org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1677)
> ~[velocity-engine-core-2.3.jar:2.3]
> at
> org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1656)
> ~[velocity-engine-core-2.3.jar:2.3]
> at
> org.apache.velocity.app.VelocityEngine.getTemplate(VelocityEngine.java:314)
> ~[velocity-engine-core-2.3.jar:2.3]
> {noformat}
> Reference:
> https://stackoverflow.com/questions/2794167/is-resultset-thread-safe
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