ghidra: Uncaught exception on connecting to gdb local debugger

Describe the bug When I connect to gdb using IN-VM GNU gdb local debugger, I get an uncaught exception To Reproduce

1. From debugger targets, create a new connection
2. select IN-VM GNU gdb local debugger and make sure path is correct
3. get error

Expected behavior connection works

Error message:

Could not initialize class agent.gdb.manager.impl.GdbManagerImpl
java.lang.NoClassDefFoundError: Could not initialize class agent.gdb.manager.impl.GdbManagerImpl
	at agent.gdb.manager.GdbManager.newInstance(GdbManager.java:107)
	at agent.gdb.model.impl.GdbModelImpl.<init>(GdbModelImpl.java:72)
	at agent.gdb.GdbInJvmDebuggerModelFactory.build(GdbInJvmDebuggerModelFactory.java:50)
	at ghidra.app.plugin.core.debug.service.model.DebuggerConnectDialog.connect(DebuggerConnectDialog.java:238)
	at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1972)
	at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2313)
	at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:405)
	at java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262)
	at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:279)
	at java.desktop/java.awt.Component.processMouseEvent(Component.java:6617)
	at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3342)
	at java.desktop/java.awt.Component.processEvent(Component.java:6382)
	at java.desktop/java.awt.Container.processEvent(Container.java:2264)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4993)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2322)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4825)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4934)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4563)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4504)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2308)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2773)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4825)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:743)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:117)
	at java.desktop/java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:190)
	at java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:235)
	at java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:233)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:312)
	at java.desktop/java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:233)
	at java.desktop/java.awt.Dialog.show(Dialog.java:1079)
	at java.desktop/java.awt.Component.show(Component.java:1720)
	at java.desktop/java.awt.Component.setVisible(Component.java:1667)
	at java.desktop/java.awt.Window.setVisible(Window.java:1032)
	at java.desktop/java.awt.Dialog.setVisible(Dialog.java:1014)
	at docking.DockingDialog.setVisible(DockingDialog.java:353)
	at docking.DockingWindowManager.lambda$doShowDialog$6(DockingWindowManager.java:1750)
	at ghidra.util.Swing.doRun(Swing.java:292)
	at ghidra.util.Swing.runNow(Swing.java:208)
	at ghidra.util.Swing.runNow(Swing.java:163)
	at docking.DockingWindowManager.doShowDialog(DockingWindowManager.java:1754)
	at docking.DockingWindowManager.showDialog(DockingWindowManager.java:1703)
	at docking.AbstractDockingTool.showDialog(AbstractDockingTool.java:154)
	at ghidra.app.plugin.core.debug.service.model.DebuggerModelServicePlugin.doShowConnectDialog(DebuggerModelServicePlugin.java:686)
	at ghidra.app.plugin.core.debug.service.model.DebuggerModelServiceProxyPlugin.showConnectDialog(DebuggerModelServiceProxyPlugin.java:270)
	at ghidra.app.services.DebuggerModelService.showConnectDialog(DebuggerModelService.java:356)
	at ghidra.app.plugin.core.debug.gui.target.DebuggerTargetsProvider$ConnectAction.actionPerformed(DebuggerTargetsProvider.java:110)
	at docking.menu.ToolBarItemManager.lambda$actionPerformed$0(ToolBarItemManager.java:128)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:316)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

---------------------------------------------------
Build Date: 2021-Jul-08 1512 EDT
Ghidra Version: 10.0.1
Java Home: /usr/lib/jvm/java-16-openjdk
JVM Version: N/A 16.0.1
OS: Linux 5.10.47-1-lts amd64
Workstation: s510u.localdomain