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Home » Language IDEs » ServerTools (WTP) » errror with web service method calling a class thats in a jar file
errror with web service method calling a class thats in a jar file [message #170772] Wed, 07 June 2006 20:08
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Originally posted by:

I'm a newbie to web services and have a question that I hope you can help me

My question is as follows.

I get the following exception when I try ro run a method (
returnValuefromJarFile) that is inside a class which I expose as a web

"exception: java.lang.reflect.InvocationTargetException"

The class that I converted to a web service looks follows

public class Ding

ding2 ding2class ;
//private Object ding2class;

public String returnValuefromJarFiile()

String test = new String("InitialValue");
System.out.println("in returnvaluefromjarfile test is " + test );

// ding2 is defined in the jar file.
ding2 ding2class = new ding2() ;
test = ding2class.getding2() ;
// System.out.println("in returnvalue before return to main value of
test from jar file is ::" + test );
return( test);


public String addtwoStringshere( String a, String b )
String c = a + b ;
return (c );

public String returnValuefromthisMethod()
String test = new String("Value from this method");
return( test);



The methods returnValuefromthisMethod() and addtwoStrings both return the
right values. My guess as to why the returnValuefromJarFile gives me an
exception is that the jar file the which contains the class ding2 is not
getting deployed to the webservice runtime. Or some link from the calling
class to the client.jar file is broken. Where do I find this plumbing ?

I know the jar file is fine because if I have a class with a main() method
inside of it I can that calls all three methods all three of the methods
work fine.

Any help would be appreciated.


Eclipse version 3.1.1 and I installed all the web services plugins from
Web Service Runtime Apache Axis
Server : Apache Tomcat 4.1

Please let me know if you need any more specific information
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