ExecuteProcessRequest exeRequest = wps.createExecuteProcessRequest();
exeRequest.setIdentifier(processIdenLocal);
exeRequest.addInput("envelope", Arrays.asList(wps.createBoundingBoxInputValue("EPSG:4326", 2, Arrays.asList(-180d, -90d), Arrays.asList(180d, 90d))));
exeRequest.addInput("width", Arrays.asList(wps.createLiteralInputValue("100")));
exeRequest.addInput("height", Arrays.asList(wps.createLiteralInputValue("50")));
ResponseDocumentType doc = wps.createResponseDocumentType(false, true, true, "result");
DocumentOutputDefinitionType odt = (DocumentOutputDefinitionType) doc.getOutput().get(0);
odt.setMimeType("application/arcgrid");
odt.setAsReference(true);
ResponseFormType responseForm = wps.createResponseForm(doc, null);
exeRequest.setResponseForm(responseForm);