Hi Leo,

That class, org.apache.catalina.startup.Bootstrap, should be in <TOMCAT>/bin/bootstrap.jar. It looks like that's on the -classpath that's being used, but can you verify that it's actually present in /usr/local/tomcat/bin?

If so, try editing your debug configuration so that the -classpath argument has the paths separated by : instead of ;. That is:

-classpath /usr/lib/jvm/java-7-oracle/lib/tools.jar:/usr/local/tomcat/bin/bootstrap.jar:/home/ldashevs/Labkey/idea-IU-117.117/lib/idea_rt.jar:./bin/tomcat-juli.jar

Thanks,
Josh