FULL PRODUCT VERSION :
java version "9-ea"
Java(TM) SE Runtime Environment (build 9-ea+116)
Java HotSpot(TM) 64-Bit Server VM (build 9-ea+116, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

EXTRA RELEVANT SYSTEM CONFIGURATION :
In the windows control setting for screen it is set at 125%

A DESCRIPTION OF THE PROBLEM :
Font rendering (or image display?) is blurry when screen options set at 125%. Sadly I can't attach screenshots. This can be tested with any GUI program, e.g. jvisualvm.exe => look at the splash window.

I have screenshots of the splash window with both JDKs. They have different sizes. This looks as if java9 does a (poor) magnifying after the rendering is done. The good one is 470 x 270, the bad one is 589 x 339.

The same problem can also be seen with the Apache PDFBOX debugger-app-2.0.1.jar (get it at https://pdfbox.apache.org/download.cgi ) and then drag and drop any PDF with text on it. Even the menus look poor. After opening a PDF, use the menu and click "View", "Zoom". The bullet symbol looks bad.

There is a similar issue:
http://bugs.java.com/bugdatabase/view_bug.do?bug_id=8129862

But that one is said to be resolved, which is why I opened this issue.

REGRESSION. Last worked in version 7u79

ADDITIONAL REGRESSION INFORMATION:
java version "1.7.0_79"
Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)


(It was also fine working on the latest JDK8, which I use at work but not here at home)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
start C:\Program Files\Java\jdk-9\bin\jvisualvm.exe and look at the splash window.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
sharp glyphs
ACTUAL -
blurry glyphs

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
set windows screen control options at 100%