Java error: Assistive Technology not found

Java error while running the  → forester-tool

java -cp /path/to/tool/forester_1050.jar org.forester.archaeopteryx.Archaeopteryx

java.awt.AWTError: Assistive Technology not found: org.GNOME.Accessibility.AtkWrapper
    at java.awt.Toolkit.loadAssistiveTechnologies(Toolkit.java:807)
    at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:886)
    at java.awt.Window.getToolkit(Window.java:1358)
    at java.awt.Window.init(Window.java:506)
    at java.awt.Window.<init>(Window.java:537)
    at java.awt.Frame.<init>(Frame.java:420)
    at java.awt.Frame.<init>(Frame.java:385)
    at javax.swing.JFrame.<init>(JFrame.java:189)
    at org.forester.archaeopteryx.MainFrame.<init>(MainFrame.java:298)

no graphics library available in "headless" java version

Solution

# check current version
sudo dpkg -l | grep openjdk 
   openjdk-11-jre-headless:amd64 ubuntu~18.04 amd64 OpenJDK Java runtime, Hotspot JIT (headless)

# remove "headless" java version
sudo apt-get remove openjdk-11-jre-headless

# install non-headless version of java
sudo apt-get install openjdk-11-jre

# check installed version