"Unexpected char e at position 17 in conversion patterrn" log4j error upon server startup

Issue:

In TIBCO JasperReports® Server 7.5, the following exception is generated upon starting up the server :

log4j:ERROR Unexpected char [e] at position 17 in conversion patterrn.

How to resolve this error ?

Solution:

1. On the TIBCO JasperReports® Server, edit the file:

    ..webappsjasperserver-proWEB-INFapplicationContext-diagnostic.xml

2. Locate the following bean: 

   <bean class="org.apache.log4j.PatternLayout">
   

   and modify:

   <value>%-5p %c[1] - %m%ex%n</value>
   

   to delete the 'e' so it looks like this:

   <value>%-5p %c[1] - %m%x%n</value>
   

3. Restart the TIBCO JasperReports® Server.

Related Articles:

• JS-56613: Non critical exceptions in JRS startup