How to Resolve ‘Null Pointer Exception’ Error On Top Activity Page In Oracle Enterprise Manager 13c

Hi,

When you login  Oracle Enterprise Manager 13c, the top activity page shows ‘Null Pointer Exception’ errors.   This is due to bug number 25455462. You can do following steps to resolve this issue.

1-Set the following property on OEM 13c machine

emctl set property -name use_pooled_target_connections -value false

2-Restart the oms

cd <OMS_HOME>/bin

(cd /u01/app/oracle/middleware/bin/)

./emctl stop oms -all
Oracle Enterprise Manager Cloud Control 13c Release 1
Copyright (c) 1996, 2015 Oracle Corporation. All rights reserved.
Stopping Oracle Management Server…
WebTier Successfully Stopped
Oracle Management Server Successfully Stopped
Oracle Management Server is Down
JVMD Engine is Down
Stopping BI Publisher Server…
BI Publisher Server Successfully Stopped
AdminServer Successfully Stopped
BI Publisher Server is Down

./emctl start oms
Oracle Enterprise Manager Cloud Control 13c Release 1
Copyright (c) 1996, 2015 Oracle Corporation. All rights reserved.
Starting Oracle Management Server…
WebTier Successfully Started
Oracle Management Server Successfully Started
Oracle Management Server is Up
JVMD Engine is Up
Starting BI Publisher Server …
BI Publisher Server Successfully Started
BI Publisher Server is Up

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