Hi!
Im very desperate with this problem: I'm using client SIP
(SIP-Communicator), which uses felix to implement a OSGI framework,and I
want to communicate with a web services through an API, but I get this error
when I try it:

log4j:ERROR A "org.apache.log4j.ConsoleAppender" object is not assignable to
a "org.apache.log4j.Appender" variable.
     [java] log4j:ERROR The class "org.apache.log4j.Appender" was loaded by
     [java] log4j:ERROR [52.0] whereas object of type
     [java] log4j:ERROR "org.apache.log4j.ConsoleAppender" was loaded by
[sun.misc.launcher$appclassloa...@11b86e7].
     [java] log4j:ERROR Could not instantiate appender named "CONSOLE".
     [java] log4j:ERROR A "org.apache.log4j.ConsoleAppender" object is not
assignable to a "org.apache.log4j.Appender" variable.
     [java] log4j:ERROR The class "org.apache.log4j.Appender" was loaded by
     [java] log4j:ERROR [52.0] whereas object of type
     [java] log4j:ERROR "org.apache.log4j.ConsoleAppender" was loaded by
[sun.misc.launcher$appclassloa...@11b86e7].
     [java] log4j:ERROR Could not instantiate appender named "CONSOLE".
     [java] 19:44:06.265 GRAVE: util.UtilActivator.uncaughtException().81 An
uncaught exception occurred in thread=Thread[AWT-EventQueue-0,6,main] and
message was: javax/naming/Referenceable
     [java] java.lang.NoClassDefFoundError: javax/naming/Referenceable
     [java]     at java.lang.ClassLoader.defineClass1(Native Method)
     [java]     at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
     [java]     at
org.apache.felix.framework.searchpolicy.ContentClassLoader.findClass(ContentClassLoader.java:223)
     [java]     at
org.apache.felix.framework.searchpolicy.ContentClassLoader.loadClassFromModule(ContentClassLoader.java:94)
     [java]     at
org.apache.felix.framework.searchpolicy.ContentLoaderImpl.getClass(ContentLoaderImpl.java:166)
     [java]     at
org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClassOrResource(R4SearchPolicyCore.java:471)
     [java]     at
org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClass(R4SearchPolicyCore.java:185)
     [java]     at
org.apache.felix.framework.searchpolicy.R4SearchPolicy.findClass(R4SearchPolicy.java:45)
     [java]     at
org.apache.felix.framework.searchpolicy.ContentClassLoader.loadClass(ContentClassLoader.java:118)
     [java]     at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
     [java]     at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
     [java]     at java.lang.ClassLoader.defineClass1(Native Method)
     [java]     at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
     [java]     at
org.apache.felix.framework.searchpolicy.ContentClassLoader.findClass(ContentClassLoader.java:223)
     [java]     at
org.apache.felix.framework.searchpolicy.ContentClassLoader.loadClassFromModule(ContentClassLoader.java:94)
     [java]     at
org.apache.felix.framework.searchpolicy.ContentLoaderImpl.getClass(ContentLoaderImpl.java:166)
     [java]     at
org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClassOrResource(R4SearchPolicyCore.java:471)
     [java]     at
org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClass(R4SearchPolicyCore.java:185)
     [java]     at
org.apache.felix.framework.searchpolicy.R4SearchPolicy.findClass(R4SearchPolicy.java:45)
     [java]     at
org.apache.felix.framework.searchpolicy.ContentClassLoader.loadClass(ContentClassLoader.java:118)
     [java]     at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
     [java]     at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
     [java]     at
es.upm.dit.ims.virtualwaitingroom.VirtualWaitingRoomImplProxy._initVirtualWaitingRoomImplProxy(VirtualWaitingRoomImplProxy.java:18)
     [java]     at
es.upm.dit.ims.virtualwaitingroom.VirtualWaitingRoomImplProxy.<init>(VirtualWaitingRoomImplProxy.java:13)
     [java]     at
com.hyc.esb.enablers.VirtualWaitingRoom.createGroup(VirtualWaitingRoom.java:86)
     [java]     at
net.java.sip.communicator.impl.gui.mainDoctor.MainFrameDoctor.activeVirtualWaitingRoom(MainFrameDoctor.java:1403)
     [java]     at
net.java.sip.communicator.impl.gui.mainDoctor.MainFrameDoctor.actionPerformed(MainFrameDoctor.java:959)
     [java]     at
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
     [java]     at
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
     [java]     at
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
     [java]     at
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
     [java]     at
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
     [java]     at java.awt.Component.processMouseEvent(Component.java:6134)
     [java]     at
javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
     [java]     at java.awt.Component.processEvent(Component.java:5899)
     [java]     at java.awt.Container.processEvent(Container.java:2023)
     [java]     at java.awt.Component.dispatchEventImpl(Component.java:4501)
     [java]     at java.awt.Container.dispatchEventImpl(Container.java:2081)
     [java]     at java.awt.Component.dispatchEvent(Component.java:4331)
     [java]     at
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4301)
     [java]     at
java.awt.LightweightDispatcher.processMouseEvent(Container.java:3965)
     [java]     at
java.awt.LightweightDispatcher.dispatchEvent(Container.java:3895)
     [java]     at java.awt.Container.dispatchEventImpl(Container.java:2067)
     [java]     at java.awt.Window.dispatchEventImpl(Window.java:2458)
     [java]     at java.awt.Component.dispatchEvent(Component.java:4331)
     [java]     at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
     [java]     at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
     [java]     at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
     [java]     at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
     [java]     at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
     [java]     at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
     [java]     at
java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
     [java] Caused by: java.lang.ClassNotFoundException:
javax.naming.Referenceable
     [java]     at
org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClass(R4SearchPolicyCore.java:198)
     [java]     at
org.apache.felix.framework.searchpolicy.R4SearchPolicy.findClass(R4SearchPolicy.java:45)
     [java]     at
org.apache.felix.framework.searchpolicy.ContentClassLoader.loadClass(ContentClassLoader.java:118)
     [java]     at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
     [java]     at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
     [java]     ... 52 more
     [java] Caused by: java.lang.ClassNotFoundException:
javax.naming.Referenceable
     [java]     at
org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClassOrResource(R4SearchPolicyCore.java:486)
     [java]     at
org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClass(R4SearchPolicyCore.java:185)
     [java]     ... 56 more

What is this?What is happened??Where is the error? and what can I do to
solve it?
Thanks a lot and regards
Pedro

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