flightxml - JAR file for Java Classes

Can you please let me know from where can I get the Jar File related below package

You would need to use Axis or Axis2 to generate those source files from the WSDL. After you download Axis2:

export CLASSPATH=$(echo . axis2-1.7.4/lib/*.jar | tr ' ' ':')

./axis2-1.7.4/bin/wsdl2java.sh -S . -uri http://flightxml.flightaware.com/soap/FlightXML2/wsdl

javac test2.java

java test2