Database Discovery Fails With JAVA.LANG.NULLPOINTEREXCEPTION In 12c Cloud Control

(Doc ID 1916595.1)

Last updated on MARCH 08, 2017

Applies to:

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


Customer is using OEM
When they are trying to discover the targets manually from console, it fails with Null pointer exception.  In the emoms.log we see

2014-06-25 16:08:27,784 [[ACTIVE] ExecuteThread: '35' for queue: 'weblogic.kernel.Default (self-tuning)'] ERROR progress.ProgressBackingBean logp.251 - Error while running Target Discovery with method:#{pageFlowScope.trainBean.doDiscovery} Exception:javax.el.ELException: java.lang.NullPointerException2014-06-25 16:08:27,801 [[ACTIVE] ExecuteThread: '35' for queue: 'weblogic.kernel.Default (self-tuning)'] WARN errPopup.ErrorPopupUtil logp.251 - java.lang.NullPointerExceptionjavax.el.ELException: javax.el.ELException: java.lang.NullPointerException
at com.sun.el.parser.AstValue.invoke(


Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms