Null Pointer Exception In Application Server Log When Requests Invoke An XM Cartridge

(Doc ID 2039768.1)

Last updated on FEBRUARY 13, 2017

Applies to:

Oracle Commerce Guided Search / Oracle Commerce Experience Manager - Version 11.0 and later
Information in this document applies to any platform.

Symptoms

On an Oracle Commerce 11.0 implementation, when invoking an Experience Manager (XM) cartridge, the following NullPointerException is thrown in the web server logging.
The exception appears 4 to 5 times per day.
There are no baseline updates or content promotion activities immediately preceding the exception.

## Environment ##
Linux x86-64 RHEL4

## Exception ##

An exception occurred invoking the Assembler with ContentItem {@type=ContentSlot, ruleLimit=1, contentCollection=/content/Shared/LeftNavigation Desktop}: com.endeca.infront.assembler.AssemblerException: java.lang.NullPointerException
at com.endeca.infront.assembler.support.AbstractAssembler.assemble(AbstractAssembler.java:112)
at atg.endeca.assembler.AssemblerTools.invokeAssembler(AssemblerTools.java:435)
at atg.endeca.assembler.droplet.InvokeAssembler.invokeAssembler(InvokeAssembler.java:324)
at atg.endeca.assembler.droplet.InvokeAssembler.service(InvokeAssembler.java:232)
at atg.servlet.DynamoServlet.service(DynamoServlet.java:152)
at atg.taglib.dspjsp.DropletTag.invokeServlet(DropletTag.java:420)
at atg.taglib.dspjsp.DropletTag.doAfterBody(DropletTag.java:705)

Cause

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