Workload Automation Agent fails to start after PeopleSoft plugin installation. The peoplesoft.log file shows the error:
main.MainThread.CybPsPluginDriver.runApplication[:135] - java.lang.NoClassDefFoundError: oracle/dms/console/DMSConsole
It is likely that some unnecessary JDBC drivers have been copied over to the agent jars/ext directory. You only need the ojdbc6.jar file.
Remove any unnecessary JDBC drivers. FYI, the only JDBC driver necessary is ojdbc6.jar.