FULL PRODUCT VERSION : java version "1.6.0_10" Java(TM) SE Runtime Environment (build 1.6.0_10-b33) Java HotSpot(TM) Server VM (build 11.0-b15, mixed mode) ADDITIONAL OS VERSION INFORMATION : Ubuntu 8.10 EXTRA RELEVANT SYSTEM CONFIGURATION : Installed adobe reader from the multiverse extra repository, right-clicked on a PDF file and told it to open all PDF files with adobe reader A DESCRIPTION OF THE PROBLEM : Ubuntu 8.10 out of the box uses document viewer 2.24.1 to open PDF files. I added the multiverse ubuntu repo, apt-get installed acroread, and configured PDF files to open with that adobe reader. Yet Desktop.getDesktop().open("myPdf.pdf") still opens it with the document viewer. Thunderbird etc use the correct program for opening a pdf file: adobe reader. STEPS TO FOLLOW TO REPRODUCE THE PROBLEM : see description EXPECTED VERSUS ACTUAL BEHAVIOR : EXPECTED - Adobe reader opened. ACTUAL - Document viewer opened. REPRODUCIBILITY : This bug can be reproduced always. ---------- BEGIN SOURCE ---------- Desktop.getDesktop().open("myPdf.pdf"); ---------- END SOURCE ----------