PdfRendererBuilder.class.run throws Exception

[jadams74]

This is a bad practice.

openhtmltopdf/openhtmltopdf-pdfbox/src/main/java/com/openhtmltopdf/pdfboxout/PdfRendererBuilder.java

Line 36 in 340f488

public void run() throws Exception {

It should throw throw render.createPDF()'s IOException instead.

[leonorader]

Merging #460 should close this issue.