3.0.9 has been released. https://gitlab.com/pdftk-java/pdftk/-/blob/master/CHANGELOG.md
[3.0.9] - 2020-01-13 Added Native image build option Fixed Print an informative error if missing dependencies Crash with newlines in arguments [3.0.8] - 2019-10-14 Changed Build for JRE version 1.7 [3.0.7] - 2019-09-09 Fixed Crash involving passwords and file handles (java.lang.NullPointerException)
