Why do I receive a Java exception when I open the Profiler on Mac?

Whenever I open the Profiler or make it the current window, I receive the following Java exception in the MATLAB Command Window. This happens in both MATLAB R2016b and R2017a on my Mac.

 

java.lang.NullPointerException

at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:54)

at sun.reflect.UnsafeObjectFieldAccessorImpl.get(UnsafeObjectFieldAccessorImpl.java:36)

at java.lang.reflect.Field.get(Field.java:379)

at sun.lwawt.macosx.CAccessible.getCAccessible(CAccessible.java:62)

at sun.lwawt.macosx.CAccessibility$30.call(CAccessibility.java:525)

at sun.lwawt.macosx.CAccessibility$30.call(CAccessibility.java:521)

at sun.lwawt.macosx.LWCToolkit$CallableWrapper.run(LWCToolkit.java:521)

at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:302)

at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:738)

at java.awt.EventQueue.access$300(EventQueue.java:103)

at java.awt.EventQueue$3.run(EventQueue.java:699)

at java.awt.EventQueue$3.run(EventQueue.java:697)

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)

at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)

at java.awt.EventQueue$4.run(EventQueue.java:713)

at java.awt.EventQueue$4.run(EventQueue.java:711)

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)

at java.awt.EventQueue.dispatchEvent(EventQueue.java:710)

at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)

at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)

at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)

Answer 1

[MathWorks Support Team]

This error is likely being caused by a third-party accessibility tool on Mac, such as Moom or BetterSnapTool.

 

To see if a tool is enabled, follow these steps:

1. From the Apple menu, select System Preferences.

2. Open Security & Privacy.

3. Click the Privacy tab.

4. Select Accessibility in the list on the left.

 

If there are any tools enabled here, try unchecking them to resolve this incompatibility.