This is a short summary which describes how to add much more logging to Openfire. This will also work with Smack and Spark and ever other java application, it’s described in detail here: http://slf4j.org/extensions.html#javaagent
Get javassist.jar and slf4j-ext-1.6.4.jar (at least slf4j-ext-1.6.0.jar) and put the files in a directory.
http://www.csg.ci.i.u-tokyo.ac.jp/~chiba/javassist/ - 3.16.0-GA
http://slf4j.org/download.html - slf4j-1.6.4.zip
Add to the java start command:
-javaagent:/path-to/slf4j-ext-1.6.4.jar=time,verbose,level=debug,ignore=org/slf4 j/:ch/qos/:org/apache/:org/dom4j/:java/util/:com/sun/:org/xml/:sun/:org/hsqldb/: org/postgresql/:org/logicalcobwebs/:java/sql/:$java/:org/jaxen/:org/xmlpull/:or g/xmpp/:com/googlecode/:gnu/inet/:org/eclipse/:org/jivesoftware/openfire/plugin/ :org/bouncycastle/:javax/servlet/:com/opensymphony/:uk/ltd/:org/jrobin/:org/jive software/openfire/fastpath/:org/jivesoftware/xmpp/:org/jivesoftware/openfire/sip /:org/jivesoftware/openfire/archive/:org/jinglenodes/:redstone/:net/sf/kraken/:o rg/jivesoftware/openfire/reporting/:org/picocontainer/
Then Openfire should start fine without exceptions. “-Xverify:none” is not needed as far as I can tell.
Other Openfire classes which one may want to ignore, depending on the interest.
org/jivesoftware/database:org/jivesoftware/util/cache/:org/jivesoftware/openfire /container/:
org/jivesoftware/admin/:
org/jivesoftware/openfire/nio/ByteBufferWriter
If log4j.xml can not be found and nothing is logged then add its path to the classpath.