This command is used to invoke your Java-to-WSDL mapping tool. The following are examples of commands used to invoke a WSDL generator:
For the Oracle's reference JAXWS implementation, the JCK provides a script on Solaris (TCKDIR/solaris/bin/wsgen.sh), on Windows (TCKDIR\win32\bin\wsgen.bat), and on Linux (TCKDIR/linux/bin/wsgen.sh) platforms that maps java classes to WSDL and xsd files.

The wsgen script supports the following command-line syntax and options:

Usage: wsgen -d <dir> <java files>
Options:
  -d  <dir>  option is used to specify the directory in which the generated files are placed.

Type the path in the text box, or select the path from the pull-down menu.