Getting org.postgresql.util.PSQLException: FATAL: invalid value for parameter "TimeZone": "IST" error in server log.

Issue

• Getting following error in server log:

2021-04-26 23:59:41,703 WARN  [org.jboss.jca.core.connectionmanager.pool.strategy.OnePool] (JCA PoolFiller) IJ000610: Unable to fill pool: java:/: javax.resource.ResourceException: IJ031084: Unable to create connection
    at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createLocalManagedConnection(LocalManagedConnectionFactory.java:345)
    at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.getLocalManagedConnection(LocalManagedConnectionFactory.java:352)
    at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:287)
    at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreConcurrentLinkedDequeManagedConnectionPool.createConnectionEventListener(SemaphoreConcurrentLinkedDequeManagedConnectionPool.java:1325)
    at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreConcurrentLinkedDequeManagedConnectionPool.fillTo(SemaphoreConcurrentLinkedDequeManagedConnectionPool.java:1138)
    at org.jboss.jca.core.connectionmanager.pool.mcp.PoolFiller.run(PoolFiller.java:97)
    at java.lang.Thread.run(Thread.java:748)
Caused by: org.postgresql.util.PSQLException: FATAL: invalid value for parameter "TimeZone": "IST"
    at org.postgresql.Driver$ConnectThread.getResult(Driver.java:361)
    at org.postgresql.Driver.connect(Driver.java:284)
    at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createLocalManagedConnection(LocalManagedConnectionFactory.java:321)
    ... 6 more