title: "Usage: PdfContentReaderTool <pdf file> [<output file>|stdout] [<page num>]" out of nowhere
body: <p>When I run my Java project in the output the text: Usage:  PdfContentReaderTool  [|stdout] []
   is displayed. And it happens even if there is not a single thing in my main method. I have heard that it is connected to iText jars. In my project Referenced Libraries project I use itextpdf-5.4.1.jar. Why is that happening?</p>