ADDITIONAL SYSTEM INFORMATION :
10.0.2 / Ubuntu 18.04 LTS

A DESCRIPTION OF THE PROBLEM :
$JAVA_HOME/lib/fontconfig.Ubuntu.properties is new for Java 10, and contains an incorrect path to the italic and bold-italic version of the "DejaVu" fonts.




STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Set the font in Java to an italic version of Serif; the output will actually be sans-serif.


CUSTOMER SUBMITTED WORKAROUND :
The lines

filename.DejaVu_Serif_Oblique=/usr/share/fonts/truetype/dejavu/DejaVuSerif-Oblique.ttf
filename.DejaVu_Serif_Bold_Oblique=/usr/share/fonts/truetype/dejavu/DejaVuSerif-BoldOblique.ttf

in fontconfig.Ubuntu.properties should be replaced with

filename.DejaVu_Serif_Oblique=/usr/share/fonts/truetype/dejavu/DejaVuSerif-Italic.ttf
filename.DejaVu_Serif_Bold_Oblique=/usr/share/fonts/truetype/dejavu/DejaVuSerif-BoldItalic.ttf


FREQUENCY : always