Running 2.10_beta2 I get the following warning:
log4j: Trying to find [log4j.xml] using context classloader sun.misc.Launcher$AppClassLoader@713c817. log4j: Trying to find [log4j.xml] using sun.misc.Launcher$AppClassLoader@713c817 class loader. log4j: Trying to find [log4j.xml] using ClassLoader.getSystemResource(). log4j: Trying to find [log4j.properties] using context classloader sun.misc.Launcher$AppClassLoader@713c817. log4j: Trying to find [log4j.properties] using sun.misc.Launcher$AppClassLoader@713c817 class loader. log4j: Trying to find [log4j.properties] using ClassLoader.getSystemResource(). log4j: Could not find resource: [null]. log4j:WARN No appenders could be found for logger (org.java.plugin.ObjectFactory). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Otherwise everything seems to be running fine.