I was working on a project which was creating pdfs with itext (core-renderer) and jasper.
Maven dependencies for conflicting and runtime ,compile time jars were causing problems like :
NoSuchMethodError: com.lowagie.text.pdf.PdfWriter.setRgbTransparencyBlending(Z)V
I saw lots of thread in internet which was not complete or not applicable to our case.
I did something like below.
1) Found the class having method setRgbTransparencyBlending
JRAbstractExporter
2)Put under my project and there was a compile error for below class
JRPdfExporterTagHelper
Just with 2 class I solved this bad problem.
