Periodic "java.util.Hashtable.put" error messages seen in the Glassfish Domain Administration Server log file (Doc ID 1006475.1)

Last updated on NOVEMBER 05, 2016

Applies to:

Oracle GlassFish Server - Version 8.1 to 8.2 [Release 8.1 to 8.2]
All Platforms

Symptoms

The following error has been periodically observed in the Domain Administration Server (DAS) log file:

[#|2005-09-16T15:14:26.984+0800|SEVERE|sun-appserver-ee8.1_02|org.apache.catalina.core.ContainerBase|_ThreadID=13;|Exception invoking periodic operation:
java.lang.NullPointerException
at java.util.Hashtable.put(Hashtable.java:396)
at java.util.Properties.setProperty(Properties.java:128)
at com.sun.enterprise.ee.web.sessmgmt.ConnectionUtil.getConnection(ConnectionUtil.java:952)
at com.sun.enterprise.ee.web.sessmgmt.HAStore.getConnection(HAStore.java:3332)
at com.sun.enterprise.ee.web.sessmgmt.HAStore.getConnectionValidated(HAStore.java:3144)
at com.sun.enterprise.ee.web.sessmgmt.HAManagerBase.insureValidConnection(HAManagerBase.java:65)
at com.sun.enterprise.ee.web.sessmgmt.HAManagerBase.processExpires(HAManagerBase.java:89)
at org.apache.catalina.session.PersistentManagerBase.backgroundProcess(PersistentManagerBase.java:213)
at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:4826)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1620)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1609)
at java.lang.Thread.run(Thread.java:595)



This error messages above has no impact if HA is being not use.



Cause

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