The invocation of web service is realized in 5 steps:
1 - run client application
2 - set the qname of new Bpel project (by default, the sdk application generates HelloworldProcess bpel project)
3 - click on "create project" button
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create project
4 - once this step is successfull, you can import project in eclipse IDE (click on File->import->General->Existing Project into workspace) to modify the bpel process if necessary or start the compilation by clicking on "compile project" button
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compile project
5 - once the compilation is successfull, you can run project. Click on "run project" button to do that.
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run project