Tilman, As requested, I just tried doing a clean build with JDK 9 Profile, using maven, and it failed on the tools subproject. Test failures.
System info: Java Version: 9.0.1 (Oracle vendor) OS: Mac OS X 10.13.2 Locale: en_BR encoding: UTF-8 Usage: $ cd ~/Downloads/pdfbox-2.0.8/ $ mvn clean install -Pjdk9 >> logMaven.txt this logMaven.txt is available on Google Drive: https://drive.google.com/open?id=1SeDWFE9t-fwMP-0eFOzlL_GaqXMf4qLi -- []'s Diego Azevedo
