Windchill RV&S silent install/upgrade fails with error "java.awt.AWTError: Can't connect to X11 window server using '10:0.0' as the value of the DISPLAY variable."

class mks.install.is.ci.SetClassPath.install() Unexpected Fatal Error:
java.awt.AWTError: Can't connect to X11 window server using '10:0.0' as the value of the DISPLAY variable.
        at java.desktop/sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
        at java.desktop/sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:102)
        at java.base/java.security.AccessController.doPrivileged(Native Method)
        at java.desktop/sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:61)
        at java.base/java.lang.Class.forName0(Native Method)
        at java.base/java.lang.Class.forName(Class.java:315)
        at java.desktop/java.awt.GraphicsEnvironment$LocalGE.createGE(GraphicsEnvironment.java:101)
        at java.desktop/java.awt.GraphicsEnvironment$LocalGE.<clinit>(GraphicsEnvironment.java:83)
        at java.desktop/java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:129)
        at java.desktop/sun.awt.X11.XToolkit.<clinit>(XToolkit.java:231)
        at java.base/java.lang.Class.forName0(Native Method)
        at java.base/java.lang.Class.forName(Class.java:315)
        at java.desktop/java.awt.Toolkit$2.run(Toolkit.java:588)
        at java.desktop/java.awt.Toolkit$2.run(Toolkit.java:583)
        at java.base/java.security.AccessController.doPrivileged(Native Method)
        at java.desktop/java.awt.Toolkit.getDefaultToolkit(Toolkit.java:582)
        at java.desktop/sun.swing.SwingUtilities2.getSystemMnemonicKeyMask(SwingUtilities2.java:2212)
        at java.desktop/javax.swing.plaf.basic.BasicLookAndFeel.initComponentDefaults(BasicLookAndFeel.java:1096)
        at java.desktop/javax.swing.plaf.metal.MetalLookAndFeel.initComponentDefaults(MetalLookAndFeel.java:440)
        at java.desktop/javax.swing.plaf.basic.BasicLookAndFeel.getDefaults(BasicLookAndFeel.java:150)
        at java.desktop/javax.swing.plaf.metal.MetalLookAndFeel.getDefaults(MetalLookAndFeel.java:1560)
        at java.desktop/javax.swing.UIManager.setLookAndFeel(UIManager.java:587)
        at java.desktop/javax.swing.UIManager.setLookAndFeel(UIManager.java:629)
        at java.desktop/javax.swing.UIManager.initializeDefaultLAF(UIManager.java:1404)
        at java.desktop/javax.swing.UIManager.initialize(UIManager.java:1517)
        at java.desktop/javax.swing.UIManager.maybeInitialize(UIManager.java:1483)
        at java.desktop/javax.swing.UIManager.getUI(UIManager.java:1056)
        at java.desktop/javax.swing.JPanel.updateUI(JPanel.java:126)
        at java.desktop/javax.swing.JPanel.<init>(JPanel.java:86)
        at java.desktop/javax.swing.JPanel.<init>(JPanel.java:109)
        at java.desktop/javax.swing.JPanel.<init>(JPanel.java:117)
        at Flexeraat4.<init>(Unknown Source)
        at Flexeraadq.<init>(Unknown Source)
        at Flexeraarf.bb(Unknown Source)
        at com.zerog.ia.api.priv.ZGInstallPanelProxy.<init>(Unknown Source)
        at com.zerog.ia.installer.util.GenericInstallPanel.<init>(Unknown Source)
        at com.zerog.ia.installer.AAMgr.<init>(Unknown Source)
        at com.zerog.ia.installer.AAMgr.<clinit>(Unknown Source)
        at Flexeraare.ad(Unknown Source)
        at Flexeraare.<clinit>(Unknown Source)
        at com.zerog.ia.api.priv.InstallPanel.<clinit>(Unknown Source)
        at mks.install.is.ci.SetClassPath.installActions(SetClassPath.java:49)
        at mks.install.InstallAction.install(InstallAction.java:48)
        at com.zerog.ia.installer.actions.CustomAction.installSelf(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.an(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.am(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.runNextInstallPiece(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.am(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.runNextInstallPiece(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.am(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.runNextInstallPiece(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.am(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.runNextInstallPiece(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.am(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.runNextInstallPiece(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.am(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.runNextInstallPiece(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.am(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.runNextInstallPiece(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.am(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.runNextInstallPiece(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.am(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.runNextInstallPiece(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.am(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.runNextInstallPiece(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.am(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.runNextInstallPiece(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.am(Unknown Source)
        at com.zerog.ia.installer.AAMgrBase.runNextInstallPiece(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.ac(Unknown Source)
        at com.zerog.ia.installer.ConsoleBasedAAMgr.runPostInstall(Unknown Source)
        at com.zerog.ia.installer.LifeCycleManager.consoleInstallMain(Unknown Source)
        at com.zerog.ia.installer.LifeCycleManager.executeApplication(Unknown Source)
        at com.zerog.ia.installer.Main.main(Unknown Source)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at com.zerog.lax.LAX.launch(Unknown Source)
        at com.zerog.lax.LAX.main(Unknown Source)

MKS124804: Internal error detected: Error was: java.lang.NoClassDefFoundError: Could not initialize class mks.ic.common.ui.swing.AdminTVIGuiView