I have been using Kraken and OpenFire on my FreeBSD Server for a year now, tho in an ancient version.
Recently due to bugs in the version I am using I wanted to upgrade. So I picked the latest version -tho any version is affected-, but OpenFire…
- just stalls,
- no connections possible,
- WebInterface blank.
If i remove kraken, then its all good. Launching OpenFire from the shell I see this output:
log4j:ERROR Could not instantiate class [net.sf.kraken.util.Log4JToOpenfireAppender].
java.lang.ClassNotFoundException: net.sf.kraken.util.Log4JToOpenfireAppender
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:186)
at org.apache.log4j.helpers.Loader.loadClass(Loader.java:179)
at org.apache.log4j.helpers.OptionConverter.instantiateByClassName(OptionConverter.java:320)
at org.apache.log4j.helpers.OptionConverter.instantiateByKey(OptionConverter.java:121)
at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:664)
at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:647)
at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:544)
at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:440)
at org.apache.log4j.PropertyConfigurator.configure(PropertyConfigurator.java:367)
at net.sf.kraken.KrakenPlugin.setLoggerProperty(KrakenPlugin.java:284)
at net.sf.kraken.KrakenPlugin.<init>(KrakenPlugin.java:61)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
at java.lang.Class.newInstance0(Class.java:372)
at java.lang.Class.newInstance(Class.java:325)
at org.jivesoftware.openfire.container.PluginManager.loadPlugin(PluginManager.java:420)
at org.jivesoftware.openfire.container.PluginManager.access$300(PluginManager.java:80)
at org.jivesoftware.openfire.container.PluginManager$PluginMonitor.run(PluginManager.java:1067)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
log4j:ERROR Could not instantiate appender named "openfire".
log4j:WARN No appenders could be found for logger (org.jivesoftware.util.log.util.CommonsLogFactory).
log4j:WARN Please initialize the log4j system properly.
I do have log4j installed, tho:
log4j-1.2.16
I am totally clueless, and the people are crying for help. 
Any advice?
-Christian.