It is possible to activate the logs. To do so, the file
logging.properties
under the directory
$CATALINA_BASE/webapps/orchestra/WEB-INF/classes
can be edited. Here is the content of that file :
handlers= java.util.logging.ConsoleHandler
.level= SEVERE
java.util.logging.ConsoleHandler.level = FINEST
java.util.logging.ConsoleHandler.formatter = org.ow2.orchestra.util.JbpmFormatter
# For example, set the com.xyz.foo logger to only log SEVERE messages:
# com.xyz.foo.level = SEVERE
#org.ow2.orchestra.pvm.level=INFO
#org.ow2.orchestra.level=FINEST
#org.ow2.orchestra.pvm.Execution.level=FINEST
#org.ow2.orchestra.wire.level=FINEST
Uncomment the last lines to activate the logs.