I want to download a simple text document on click of a button in PRPC7.3.1. On click of the button I refreshed the section and called an activity that has just one java step. The java content is given below. On first click of the button, the document is downloading properly but thereafter its not throwing to browser. I traced, all the steps are executing properly. If I refresh the complete URL from browser, it again works fine for one time only.

ClipboardPage objHeadersPage = tools.findPage("pxRequestor").getProperty(".pyHTTPResponseHeaders").getPageValue();
objHeadersPage.putString("contentType" ,"text/plain");
objHeadersPage.putString("ContentDisposition" ,"attachment;filename=test.txt");
String contents="Hello World!!";
byte[] bContents=contents.getBytes();
String result=tools.sendFile(bContents,"test1.bat", false, null, true);