问题补充:java.lang.InternalError: Can't connect to X11 window server using 'localhost:10.0' as the value of the DISPLAY variable.
sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
sun.awt.X11GraphicsEnvironment.access$000(X11GraphicsEnvironment.java:53)
sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:142)
java.security.AccessController.doPrivileged(Native Method)
sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:131)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Class.java:164)
java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:68)
sun.awt.X11.XToolkit.<clinit>(XToolkit.java:96)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Class.java:164)
java.awt.Toolkit$2.run(Toolkit.java:821)
java.security.AccessController.doPrivileged(Native Method)
java.awt.Toolkit.getDefaultToolkit(Toolkit.java:804)
javax.swing.UIManager.initialize(UIManager.java:1262)
javax.swing.UIManager.maybeInitialize(UIManager.java:1245)
javax.swing.UIManager.getDefaults(UIManager.java:556)
javax.swing.UIManager.getColor(UIManager.java:590)
org.jfree.chart.JFreeChart.<clinit>(JFreeChart.java:261)