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  1. JBoss Enterprise Application Platform
  2. JBEAP-23506

[GSS](7.4.z) JBJCA-1362 - NPE from SemaphoreConcurrentLinkedDequeManagedConnectionPool.returnForFrequencyCheck

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      With a datasource configured such as this below:

      ...
<validation>
 <check-valid-connection-sql>select 1</check-valid-connection-sql>
 <validate-on-match>false</validate-on-match>
 <background-validation>true</background-validation>
 <background-validation-millis>10000</background-validation-millis>
</validation>
...

      This exception occurred after the database went down and came back. This error occurred and the data source connections were not restored until restarting EAP:

      WARN  [org.jboss.jca.core.connectionmanager.pool.validator.ConnectionValidator] (ConnectionValidator) [] IJ000602: ConnectionValidator ignored unexpected runtime exception: java.lang.NullPointerException
	at java.util.concurrent.ConcurrentLinkedDeque.checkNotNull(ConcurrentLinkedDeque.java:798) [rt.jar:1.8.0_292]
	at java.util.concurrent.ConcurrentLinkedDeque.linkLast(ConcurrentLinkedDeque.java:386) [rt.jar:1.8.0_292]
	at java.util.concurrent.ConcurrentLinkedDeque.addLast(ConcurrentLinkedDeque.java:903) [rt.jar:1.8.0_292]
	at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreConcurrentLinkedDequeManagedConnectionPool.returnForFrequencyCheck(SemaphoreConcurrentLinkedDequeManagedConnectionPool.java:1580) [ironjacamar-core-impl-1.4.33.Final-redhat-00001.jar:1.4.33.Final-redhat-00001]
	at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreConcurrentLinkedDequeManagedConnectionPool.validateConnections(SemaphoreConcurrentLinkedDequeManagedConnectionPool.java:1506) [ironjacamar-core-impl-1.4.33.Final-redhat-00001.jar:1.4.33.Final-redhat-00001]
	at org.jboss.jca.core.connectionmanager.pool.validator.ConnectionValidator$ConnectionValidatorRunner.run(ConnectionValidator.java:285) [ironjacamar-core-impl-1.4.33.Final-redhat-00001.jar:1.4.33.Final-redhat-00001]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_292]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [rt.jar:1.8.0_292]
	at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_292]

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          incorporates

          Bug - A problem that impairs or prevents the functions of the product. JBJCA-1362 NPE from SemaphoreConcurrentLinkedDequeManagedConnectionPool.returnForFrequencyCheck

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved
          is incorporated by

          Component Upgrade - A task tracking an update to a bundled component or revision of component upstream of the project. JBEAP-23344 [GSS](7.4.z) Upgrade Ironjacamar from 1.5.3.Final-redhat-00001 to 1.5.3.SP1

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed
          relates to

          Bug - A problem that impairs or prevents the functions of the product. JBEAP-23815 [QA](7.4.z) Some issues with db validation connection

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

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              rchakrab Ranabir Chakraborty
              rhn-support-bmaxwell Brad Maxwell
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