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  1. ,
    Expert tip

    org.apache.http.config.Lookup class is in httpcore-4.3.jar not in httpclient-4.3.1.jar

  2. ,
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    Look if your classpath is correct, and check if the versions of your libraries match the version you described in your pom.xml

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java.lang.NoClassDefFoundError: javax/ejb/EJBHome	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:620)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)	at java.net.URLClassLoader.access$100(URLClassLoader.java:56)	at java.net.URLClassLoader$1.run(URLClassLoader.java:195)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)	at java.lang.ClassLoader.loadClass(ClassLoader.java:299)	at java.lang.ClassLoader.loadClass(ClassLoader.java:251)	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:242)	at oracle.oc4j.rmi.ClientRmiTypeCache$InterfaceTypeCache.getNamedInterfaces(ClientRmiTypeCache.java:98)	at oracle.oc4j.rmi.ClientRmiTypeCache$InterfaceTypeCache.getInterfaceType(ClientRmiTypeCache.java:85)	at oracle.oc4j.rmi.ClientRmiTypeCache.getCachedType(ClientRmiTypeCache.java:33)	at com.evermind.server.rmi.RMIClientConnection.getBoundObject(RMIClientConnection.java:981)	at com.evermind.server.rmi.RMIClientInputStream.resolveObject(RMIClientInputStream.java:26)	at java.io.ObjectInputStream.checkResolve(ObjectInputStream.java:1346)	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339)	at com.evermind.server.rmi.RMIClientConnection.handleLookupResponse(RMIClientConnection.java:825)	at com.evermind.server.rmi.RMIClientConnection.handleOrmiCommandResponse(RMIClientConnection.java:283)	at com.evermind.server.rmi.RMIClientConnection.dispatchResponse(RMIClientConnection.java:242)	at com.evermind.server.rmi.RMIClientConnection.processReceivedCommand(RMIClientConnection.java:224)	at com.evermind.server.rmi.RMIConnection.handleCommand(RMIConnection.java:152)	at com.evermind.server.rmi.RMIConnection.listenForOrmiCommands(RMIConnection.java:127)	at com.evermind.server.rmi.RMIConnection.run(RMIConnection.java:107)	at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:814)	at java.lang.Thread.run(Thread.java:595)