I am a bit desperate, my ECF remote service example just won't work with XMPP. Is this exception familiar to you?
java.lang.NoClassDefFoundError: org/eclipse/equinox/concurrent/future/AbstractExecutor
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:188)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:580)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:550)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:481)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass_LockClassLoader(ClasspathManager.java:469)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:449)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:393)
	at org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass(SingleSourcePackage.java:33)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:466)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:188)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:580)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:550)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:481)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass_LockClassLoader(ClasspathManager.java:469)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:449)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:216)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:393)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:469)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
	at org.eclipse.ecf.internal.provider.xmpp.XMPPRemoteServiceAdapterFactory.createAdapter(XMPPRemoteServiceAdapterFactory.java:47)
	at org.eclipse.ecf.core.sharedobject.AbstractSharedObjectContainerAdapterFactory.getSharedObjectAdapter(AbstractSharedObjectContainerAdapterFactory.java:93)
	at org.eclipse.ecf.core.sharedobject.AbstractSharedObjectContainerAdapterFactory.getContainerAdapter(AbstractSharedObjectContainerAdapterFactory.java:51)
	at org.eclipse.ecf.core.AbstractContainerAdapterFactory.getAdapter(AbstractContainerAdapterFactory.java:32)
	at org.eclipse.core.internal.runtime.AdapterManager.getAdapter(AdapterManager.java:326)
	at org.eclipse.core.internal.runtime.AdapterManager.loadAdapter(AdapterManager.java:356)
	at org.eclipse.ecf.provider.generic.SOContainer.getAdapter(SOContainer.java:298)
	at org.eclipse.ecf.provider.xmpp.XMPPContainer.getAdapter(XMPPContainer.java:265)
	at org.remotercp.ecf.session.impl.SessionServiceImpl.getRemoteServiceContainerAdapter(SessionServiceImpl.java:90)
	at org.remotercp.ecf.session.impl.SessionServiceImpl.registerRemoteService(SessionServiceImpl.java:197)
	at org.remotercp.ecf.session.impl.SessionServiceImpl.publishRemoteServicesToUser(SessionServiceImpl.java:312)
	at org.remotercp.ecf.session.impl.SessionServiceImpl.access$2(SessionServiceImpl.java:302)
	at org.remotercp.ecf.session.impl.SessionServiceImpl$1.handlePresence(SessionServiceImpl.java:279)
	at org.eclipse.ecf.internal.provider.xmpp.XMPPContainerPresenceHelper.firePresenceListeners(XMPPContainerPresenceHelper.java:568)
	at org.eclipse.ecf.internal.provider.xmpp.XMPPContainerPresenceHelper.handlePresenceEvent(XMPPContainerPresenceHelper.java:557)
	at org.eclipse.ecf.internal.provider.xmpp.XMPPContainerPresenceHelper.handleEvent(XMPPContainerPresenceHelper.java:135)
	at org.eclipse.ecf.provider.generic.SOWrapper.svc(SOWrapper.java:185)
	at org.eclipse.ecf.provider.generic.SOWrapper$2.run(SOWrapper.java:138)
	at java.lang.Thread.run(Thread.java:637)
Caused by: java.lang.ClassNotFoundException: org.eclipse.equinox.concurrent.future.AbstractExecutor
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:506)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
	... 52 more