I am having the enterprise.wsdl file and i am trying to create a jar file using command 

java -classpath wsc-20.jar com.sforce.ws.tools.wsdlc enterprise.wsdl enterprise.jar

but getting an error "Error: Unable to find compiler. Make sure that tools.jar is in your classpath:

java.lang.ClassNotFoundException: com/sun/tools/javac/Main.class"

can anyone help me..............

thank you.......................