Thank you very much for your answer mlohbihler,
I have put a log extract just when the error occurs (2010-11-14 21:18:37,306) in the attached file.
In the beginning of the Catalina log file I can see the Tomcat version:
INFO: Starting Servlet Engine: Apache Tomcat/6.0.20
I can see also an info at beginning of log file, could it be linked to the problem?
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/lib/jvm/java-6-openjdk/jre/lib/i386/client:/usr/lib/jvm/java-6-openjdk/jre/lib/i386:/usr/lib/jvm/java-6-openjdk/jre/../lib/i386:/usr/java/packages/lib/i386:/usr/lib/jni:/lib:/usr/lib
I have read there was a bug in Tomcat 6.0.24 causing the same error message but I'm not sure it is linked:
Thank you for your help,
Attachment: download link