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Support Article

NoClassDefFoundError on connecting to a Pega hosted SOAP service

SA-16230

Summary



External application cannot access a Pega-hosted SOAP service.


Error Messages



Caused by: java.lang.NoClassDefFoundError: com/pega/apache/log4j/spi/ThrowableInformation
at com.pega.apache.log4j.spi.LoggingEvent.<init>(LoggingEvent.java:155)
at com.pega.apache.log4j.Category.forcedLog(Category.java:391)
at com.pega.apache.log4j.Category.error(Category.java:322)
at com.pega.pegarules.priv.LogHelper.error(LogHelper.java:1459)

 

Steps to Reproduce



NA


Root Cause



A defect or configuration issue in the operating environment.  The needed class is sporadically unable to load from the database.

Resolution



Perform the following local-change: 

Add following setting to prconfig.xml to pre-load the offending class:

<env name="initialization/preloadengineclasses" value="com.pega.apache.log4j.spi.ThrowableInformation" />
 

Published January 31, 2016 - Updated October 8, 2020

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