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Support Article

PRPC717 NoClassDefFoundError com/pega/apache/log4j/spi/Throwable



After installing Pega 7.1.7 the administrator was observing the problem while deploying the application server, resulting in the error below.

Error Messages

####<Jan 14, 2015 7:14:22 PM EET> <Error> <com.pega.pegarules.internal.bootstrap.PRBootstrap> <xxxxxxxxxxx> <AdminServer> <[ACTIVE] ExecuteThread: '14' for queue: 'weblogic.kernel.Default (self-tuning)'> <<anonymous>> <BEA1-001F5DCEE5963057A4BD> <> <1421255662232> <BEA-000000> <Problem during method invocation (saveInOwnTransaction) 
java.lang.NoClassDefFoundError: com/pega/apache/log4j/spi/ThrowableInformation

Root Cause

While handling errors in Pega if this relates to a log4j class the system will attempt to download that class from the database.

In this instance the following entries were added to the prconfig.xml file to enable system-wide db trace (with appears as a file in the Pega Temp directory under /StaticContent/global/ServiceExport as a file named dbOperations_<timestamp>.txt)

       <env name="database/dumpstats" value="true" />
       <env name="database/traceEvents" value="preparedStatementUpdate;preparedStatementQuery;preparedStatement" />
       <env name="alerts/database/operationTimeThreshold/suppressInserts" value="false" />


The additional logging enabled the DBA to identify a missing database permission that was required.

For the full list of database permissions you can refer to: -

Published January 31, 2016 - Updated October 8, 2020

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