Fails to load and null ptr deref on exit on Ghidra 11.2.1

[novafacing]

Describe the bug

Cartographer doesn't load (no menu options) on Ghidra 11.2.1, and throws an exception when Ghidra quits:

java.lang.NullPointerException: Cannot invoke "ghidra.framework.main.FrontEndService.addProjectListener(ghidra.framework.model.ProjectListener)" because "frontEnd" is null
java.lang.RuntimeException: java.lang.NullPointerException: Cannot invoke "ghidra.framework.main.FrontEndService.addProjectListener(ghidra.framework.model.ProjectListener)" because "frontEnd" is null
	at ghidra.framework.plugintool.Plugin.cleanup(Plugin.java:288)
	at ghidra.framework.plugintool.PluginManager.dispose(PluginManager.java:105)
	at ghidra.framework.plugintool.PluginTool.dispose(PluginTool.java:515)
	at ghidra.framework.main.FrontEndTool.dispose(FrontEndTool.java:170)
	at ghidra.framework.plugintool.PluginTool.close(PluginTool.java:1212)
	at docking.DockingWindowManager.close(DockingWindowManager.java:1184)
	at docking.RootNode$JFrameWindowWrapper$1.windowClosing(RootNode.java:814)
	at java.desktop/java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:357)
	at java.desktop/java.awt.Window.processWindowEvent(Window.java:2085)
	at java.desktop/javax.swing.JFrame.processWindowEvent(JFrame.java:298)
	at java.desktop/java.awt.Window.processEvent(Window.java:2044)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4996)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2780)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4828)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:775)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:98)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:747)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:744)
	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)
Caused by: java.lang.NullPointerException: Cannot invoke "ghidra.framework.main.FrontEndService.addProjectListener(ghidra.framework.model.ProjectListener)" because "frontEnd" is null
	at ghidra.app.plugin.debug.DomainFolderChangesDisplayPlugin.dispose(DomainFolderChangesDisplayPlugin.java:63)
	at ghidra.framework.plugintool.Plugin.cleanup(Plugin.java:277)
	... 31 more

To Reproduce
Steps to reproduce the behavior:

1. Build Cartographer against Ghidra 11.2.1
2. Open Ghidra
3. See there are no menu options in the Tool menu
4. Close Ghidra
5. See the crash exception

Expected behavior

Works as normal.

[0xd3xt3r]

I tried to build for Ghidra 11.3 and I am not able to see the menu options in the "Tool menu" and the "Windows" menu.

[chf0x]

Just built for 11.3.2, works with no issues

ghidra_11.3.2_DEV_20250621_Cartographer.zip

[psparc82]

Just built for 11.3.2, works with no issues

ghidra_11.3.2_DEV_20250621_Cartographer.zip

have you tried with 11.4.2?

[nevesnunes]

I was able to build and run with 12.0.2, but initially had the same issue of "doesn't load (no menu options)".

It seems this issue might be inconsistent state on the config directory of the Ghidra installation, or errors in other installed extensions / modules that prevent subsequent modules from being loaded.

After doing a clean slate installation (i.e. new config directory with no other extensions installed), this extension is loaded and I get the dialog window "new plugin detected" along with menu options.