NPE in FX code

[Werner Lehmann]

Hi,

using an Eclipse exception breakpoint on NullPointerException I am 
getting a lot of internal NPE. They are catched somewhere and I am 
seeing them in the debugger only. It is not a big problem because I can 
simply filter everything in com.sun.* and javafx.* (and that's what I 
have to do).

Question is, should this be happening in the first place? See below for 
an example of what I am getting right now on FX 2.2.2.

Rgds
Werner

> Thread [JavaFX Application Thread] (Suspended (exception NullPointerException))	
> 	T2KFontFactory.addToMaps(T2KFontFile) line: 1506	
> 	T2KFontFactory.populateFontFileNameMapGeneric(String) line: 1548	
> 	T2KFontFactory$5.run() line: 1433	
> 	T2KFontFactory$5.run() line: 1431	
> 	AccessController.doPrivileged(PrivilegedExceptionAction<T>) line: not available [native method]	
> 	T2KFontFactory.getFullNameToFileMap() line: 1430	
> 	T2KFontFactory.getFontFamilyNames() line: 1063	
> 	WCFontImpl.getFont(String, boolean, boolean, float) line: 37	
> 	FXGraphicsManager.getWCFont(String, boolean, boolean, float) line: 56	
> 	URLLoader.twkDidFail(int, String, String, long) line: not available [native method]	
> 	URLLoader.access$1400(int, String, String, long) line: 42	
> 	URLLoader$7.run() line: 669	
> 	WinApplication._runLoop(String[], Launchable) line: not available [native method]	
> 	WinApplication.access$100(WinApplication, String[], Launchable) line: 29	
> 	WinApplication$2$1.run() line: 67	
> 	Thread.run() line: not available	

> Thread [AWT-EventQueue-0] (Suspended (exception NullPointerException))	
> 	SystemProperties.setVersions() line: 81	
> 	SystemProperties.access$200() line: 31	
> 	SystemProperties$1.run() line: 66	
> 	AccessController.doPrivileged(PrivilegedAction<T>) line: not available [native method]	
> 	SystemProperties.<clinit>() line: 62	
> 	PlatformImpl.runLater(Runnable, boolean) line: 159	
> 	PlatformImpl.runLater(Runnable) line: 148	
> 	Platform.runLater(Runnable) line: 52	
> 	MintSwingLoginScreen.<init>() line: 39	
> 	MintWebAssistantApplication.<init>() line: 100	
> 	MintWebAssistantApplication.<clinit>() line: 79	
> 	MintWebAssistantStart$1.startApplication() line: 133	
> 	MintWebAssistantStart$1.run() line: 53	
> 	InvocationEvent.dispatch() line: not available	
> 	EventQueue.dispatchEventImpl(AWTEvent, Object) line: not available	
> 	EventQueue.access$000(EventQueue, AWTEvent, Object) line: not available	
> 	EventQueue$1.run() line: not available	
> 	EventQueue$1.run() line: not available	
> 	AccessController.doPrivileged(PrivilegedAction<T>, AccessControlContext) line: not available [native method]	
> 	AccessControlContext$1.doIntersectionPrivilege(PrivilegedAction<T>, AccessControlContext, AccessControlContext) line: not available	
> 	EventQueue.dispatchEvent(AWTEvent) line: not available	
> 	EventDispatchThread.pumpOneEventForFilters(int) line: not available	
> 	EventDispatchThread.pumpEventsForFilter(int, Conditional, EventFilter) line: not available	
> 	EventDispatchThread.pumpEventsForHierarchy(int, Conditional, Component) line: not available	
> 	EventDispatchThread.pumpEvents(int, Conditional) line: not available	
> 	EventDispatchThread.pumpEvents(Conditional) line: not available	
> 	EventDispatchThread.run() line: not available	

> Thread [JavaFX Application Thread] (Suspended (exception NullPointerException))	
> 	PropertyHelper$1.run() line: 41	
> 	PropertyHelper$1.run() line: 37	
> 	AccessController.doPrivileged(PrivilegedAction<T>) line: not available [native method]	
> 	PropertyHelper.getBooleanProperty(String) line: 36	
> 	Parent.<clinit>() line: 88	
> 	MintSwingLoginScreen$1.run() line: 43	
> 	PlatformImpl$4.run() line: 173	
> 	WinApplication._runLoop(String[], Launchable) line: not available [native method]	
> 	WinApplication.access$100(WinApplication, String[], Launchable) line: 29	
> 	WinApplication$2$1.run() line: 67	
> 	Thread.run() line: not available	

> Thread [JavaFX Application Thread] (Suspended (exception NullPointerException))	
> 	SelectBinding$SelectBindingHelper.getObservableValue() line: 422	
> 	SelectBinding$SelectBindingHelper.access$200(SelectBinding$SelectBindingHelper) line: 372	
> 	SelectBinding$AsDouble.computeValue() line: 171	
> 	SelectBinding$AsDouble(DoubleBinding).get() line: 202	
> 	SelectBinding$AsDouble(DoubleExpression).getValue() line: 68	
> 	SelectBinding$AsDouble(DoubleBinding).getValue() line: 111	
> 	ExpressionHelper<T>.addListener(ExpressionHelper<T>, ObservableValue<T>, InvalidationListener) line: 73	
> 	SelectBinding$AsDouble(DoubleBinding).addListener(InvalidationListener) line: 121	
> 	Region$7(DoublePropertyBase).bind(ObservableValue<Number>) line: 202	
> 	MintApplicationBar.initialize(URL, ResourceBundle) line: 153	
> 	FXMLLoader.load(InputStream) line: 2152	
> 	MintFXUtils.loadFXML(FXMLLoader, URL) line: 154	
> 	MintFXUtils.initializeCustomControl(Node, Class<Node>) line: 138	
> 	MintFXUtils.initializeCustomControl(Node) line: 118	
> 	MintApplicationBar.<init>() line: 147	
> 	MintSwingApplicationBar$1.run() line: 59	
> 	PlatformImpl$4.run() line: 173	
> 	WinApplication._runLoop(String[], Launchable) line: not available [native method]	
> 	WinApplication.access$100(WinApplication, String[], Launchable) line: 29	
> 	WinApplication$2$1.run() line: 67	
> 	Thread.run() line: not available