workflow.removeFiles(array) is not working properly

kumardas

I have a workflow developed using Workflow Modeler. I am using preprocessor in my workflow. Because just before the job is created i need to do some customisations with the selected files. I need to remove some/all of those selected files and attach some/all other files to the workflow. I am using java for the pre processor class file. By using the WFMWorkflow object i am getting the list of files and also there is a method in workflow object, that is, removeFiles(WFMFile[]). It has to delete all the files existing in WFMFile[] array. Below is the code i am using...

WFMFile[] allfiles = workflow.getFiles();
workflow.removeFiles(allfiles);

But it is not deleting all the files. Suppose if i have selected 10 files and then started the workflow. Based on the above code existing in pre processor, it should delete all the files. But it is deleting only 9 files (If i select n no.of files, it is deleting n-1 no.of files). I have tried in some other ways also, but i was not able to delete all the files. I am failing in deleting the last file. Can any one help me in this ? Thanks in advance....