Problems with simple java programm to access Xindice

[Alexander Schatten]

I fail to write a simple java application accessing dbXML/XIncice:
(1) I start dbxml on localhost
(2) I try to connect to the database using this code:
    org.xmldb.api.base.Collection col = null;
    try {
      Class c = Class.forName("");
      Database database = (Database) c.newInstance();
      DatabaseManager.registerDatabase(database);
      col = 
DatabaseManager.getCollection("xmldb:dbxml://localhost:4080/db/root");

...
...
I receive an exception. btw. I tried a lot of different URIs also 
xmldb:dbxml:///db and so on.

"org.xmldb.api.base.XMLDBException: A connection to the Database 
instance 'db' could not be created. Error: http://localhost:4080/db.ior";

(3) sometimes I receive an error (even with the method from the 
documentation):

java.lang.NoClassDefFoundError: org/dbxml/server/dbXMLException
I searched through the jars and found neither this class, nor the server 
package...? so even the example programs will not work???

please can anyone give me assistance?
thank you

Alex

btw.: I found no place in the documentation where is explained which 
jars have to be added to the classpath when writing a java application...