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EM13c : Navigating To PDB Page Gives - An internal error has occurred. Check the log file for details. (Doc ID 2885739.1)

Last updated on JULY 26, 2022

Applies to:

Enterprise Manager for Oracle Database - Version and later
Information in this document applies to any platform.


In Enterprise Manager (EM) Cloud Control, Connecting to PDB page gives "Trying to connect to the database.."

and then finally displays,

An internal error has occurred. Check the log file for details.

Error stack observed from <EM_INSTANCE_HOME>/em/EMGC_OMS*/sysman/log/emoms.trc file:

2022-07-22 10:32:19,907 [MetricCollector:HOMETAB_THREAD600:60] ERROR rt.DbMetricCollectorTarget logp.251 - Exception in getConnection()obidbprd.cob.gov_POBIDBPRD:oracle_pdbjava.lang.NullPointerException
2022-07-22 10:32:19,910 [MetricCollector:HOMETAB_THREAD600:60] WARN db.home logp.251 - <PDB Name>::oracle_pdb::PDB_HOME_SUMMARY: null
at java.util.StringTokenizer.<init>(
at oracle.sysman.emSDK.core.util.jdbc.ConnectionFactory.getJDBCURL(



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