Teminal error from runing the openmrs- standalone

Attempting to load properties file in current directory: openmrs-standalone-runtime.properties
Using runtime properties file: openmrs-standalone-runtime.properties
OpenJDK 64-Bit Server VM warning: ignoring option PermSize=256m; support was removed in 8.0
OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
Attempting to load properties file in current directory: openmrs-standalone-runtime.properties
Using runtime properties file: openmrs-standalone-runtime.properties
Attempting to load properties file in current directory: openmrs-standalone-runtime.properties
Using runtime properties file: openmrs-standalone-runtime.properties
Exception in thread "main" 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.openmrs.standalone.MainFrame.<init>(MainFrame.java:77)
	at org.openmrs.standalone.ApplicationController.init(ApplicationController.java:224)
	at org.openmrs.standalone.ApplicationController.<init>(ApplicationController.java:54)
	at org.openmrs.standalone.ApplicationController.main(ApplicationController.java:123)
Exit:1
[MysqldResource] Mysqld not running. No file: /home/collins/Dev/openmrs-app/stdalone/openmrs-standalone-2.2.0/database/data/MysqldResource.pid