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

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java.lang.NoClassDefFoundError: javax/activation/DataSource	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:141)	at org.apache.axis.encoding.ser.JAFDataHandlerSerializerFactory.class$(JAFDataHandlerSerializerFactory.java:37)	at org.apache.axis.encoding.ser.JAFDataHandlerSerializerFactory.getSerializerClass(JAFDataHandlerSerializerFactory.java:46)	at org.apache.axis.encoding.ser.JAFDataHandlerSerializerFactory.(JAFDataHandlerSerializerFactory.java:34)	at org.apache.axis.encoding.DefaultTypeMappingImpl.initMappings(DefaultTypeMappingImpl.java:120)	at org.apache.axis.encoding.DefaultTypeMappingImpl.(DefaultTypeMappingImpl.java:91)	at org.apache.axis.encoding.DefaultTypeMappingImpl.getSingletonDelegate(DefaultTypeMappingImpl.java:85)	at org.apache.axis.encoding.TypeMappingRegistryImpl.(TypeMappingRegistryImpl.java:155)	at org.apache.axis.encoding.TypeMappingRegistryImpl.(TypeMappingRegistryImpl.java:149)	at org.apache.axis.wsdl.fromJava.Emitter.(Emitter.java:747)	at org.apache.axis.tools.ant.wsdl.Java2WsdlAntTask.execute(Java2WsdlAntTask.java:172)	at org.eclipse.jst.ws.internal.axis.consumption.core.command.Java2WSDLCommand.executeAntTask(Java2WSDLCommand.java:163)