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

22 次查看（过去 30 天）
MathWorks Support Team
回答： MathWorks Support Team 2017-7-31
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)

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采纳的回答

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.

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