API break in 2.1 JavaFXBuilderFactory

Greg Brown greg.x.brown at oracle.com
Tue Jan 3 06:39:18 PST 2012 

Not sure why you are seeing that exception. I don't have a problem loading that markup using the default constructor. The default constructor just invokes JavaFXBuilderFactory(ClassLoader, boolean) and passes false as the second argument.

FWIW, these FXMLLoader constructors now create a default JavaFXBuilderFactory by default, so you may not actually need to create your own instance:

FXMLLoader()
FXMLLoader(URL)
FXMLLoader(URL, ResourceBundle)

G

On Dec 31, 2011, at 8:37 AM, Tom Schindl wrote:

> Hi,
> 
> It looks like the JavaFXBuilderFactory lost the
> JavaFXBuilderFactory(boolean) constructor.
> 
> I've been this constructor like this "new JavaFXBuilderFactory(false)"
> because with the default one (new JavaFXBuilderFactory()) an FXML-File
> like this:
> 
>> <?xml version="1.0" encoding="UTF-8"?>
>> <!-- 
>> 	Do not edit this file it is generated by e(fx)clipse from /at/bestsolution/efxclipse/testcases/fxgraph/BindingTest.fxgraph
>> -->
>> 
>> <?import java.lang.*?>
>> <?import javafx.scene.control.Label?>
>> <?import javafx.scene.control.TextField?>
>> <?import javafx.scene.layout.HBox?>
>> 
>> <HBox xmlns:fx="http://javafx.com/fxml">
>> 	
>> 	<children>
>> 		<Label> 
>> 			<text>Binding</text>
>> 		</Label>
>> 		<TextField fx:id="field1"/> 
>> 		<TextField text="${field1.text}"/> 
>> 	</children>
>> 
>> </HBox>
> 
> Fails with an exception like this.
> 
>> WARNUNG: Method text failed
>> java.lang.NullPointerException
>> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>> 	at java.lang.reflect.Method.invoke(Method.java:597)
>> 	at javafx.fxml.JavaFXBuilder$ObjectBuilder.put(JavaFXBuilderFactory.java:237)
>> 	at javafx.fxml.JavaFXBuilder$ObjectBuilder.put(JavaFXBuilderFactory.java:138)
>> 	at javafx.fxml.FXMLLoader$ExpressionTargetMapping.changed(FXMLLoader.java:1127)
>> 	at com.sun.javafx.binding.ExpressionHelper$SingleChange.fireValueChangedEvent(ExpressionHelper.java:181)
>> 	at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:64)
>> 	at javafx.beans.property.ReadOnlyObjectPropertyBase.fireValueChangedEvent(ReadOnlyObjectPropertyBase.java:43)
>> 	at com.sun.javafx.fxml.expression.ExpressionBinding$ValueProperty.fireValueChangedEvent(ExpressionBinding.java:87)
>> 	at com.sun.javafx.fxml.expression.ExpressionBinding$KeyPathMonitor$2.onChanged(ExpressionBinding.java:154)
>> 	at com.sun.javafx.fxml.BeanAdapter$PropertyInvalidationListener.invalidated(BeanAdapter.java:170)
>> 	at com.sun.javafx.binding.ExpressionHelper$MultipleInvalidation.fireValueChangedEvent(ExpressionHelper.java:301)
>> 	at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:64)
>> 	at javafx.scene.control.TextInputControl$TextProperty.fireValueChangedEvent(TextInputControl.java:991)
>> 	at javafx.scene.control.TextInputControl$TextProperty.markInvalid(TextInputControl.java:995)
>> 	at javafx.scene.control.TextInputControl$TextProperty.invalidate(TextInputControl.java:935)
>> 	at javafx.scene.control.TextInputControl$TextProperty.access$100(TextInputControl.java:907)
>> 	at javafx.scene.control.TextInputControl$1.invalidated(TextInputControl.java:109)
>> 	at com.sun.javafx.binding.ExpressionHelper$SingleInvalidation.fireValueChangedEvent(ExpressionHelper.java:140)
>> 	at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:64)
>> 	at javafx.scene.control.TextField$TextFieldContent.insert(TextField.java:70)
>> 	at javafx.scene.control.TextInputControl.replaceText(TextInputControl.java:338)
>> 	at com.sun.javafx.scene.control.skin.TextFieldSkin.replaceText(TextFieldSkin.java:407)
>> 	at com.sun.javafx.scene.control.behavior.TextFieldBehavior.replaceText(TextFieldBehavior.java:134)
>> 	at com.sun.javafx.scene.control.behavior.TextInputControlBehavior.defaultKeyTyped(TextInputControlBehavior.java:185)
>> 	at com.sun.javafx.scene.control.behavior.TextInputControlBehavior.callAction(TextInputControlBehavior.java:114)
>> 	at com.sun.javafx.scene.control.behavior.BehaviorBase.callActionForEvent(BehaviorBase.java:165)
>> 	at com.sun.javafx.scene.control.behavior.TextInputControlBehavior.callActionForEvent(TextInputControlBehavior.java:107)
>> 	at com.sun.javafx.scene.control.behavior.BehaviorBase$1.handle(BehaviorBase.java:127)
>> 	at com.sun.javafx.scene.control.behavior.BehaviorBase$1.handle(BehaviorBase.java:125)
>> 	at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:56)
>> 	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:162)
>> 	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:115)
>> 	at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:38)
>> 	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:37)
>> 	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92)
>> 	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:35)
>> 	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92)
>> 	at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:47)
>> 	at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:33)
>> 	at javafx.event.Event.fireEvent(Event.java:171)
>> 	at javafx.scene.Scene$KeyHandler.process(Scene.java:2938)
>> 	at javafx.scene.Scene$KeyHandler.access$1700(Scene.java:2868)
>> 	at javafx.scene.Scene.impl_processKeyEvent(Scene.java:1431)
>> 	at javafx.scene.Scene$ScenePeerListener.keyEvent(Scene.java:1862)
>> 	at com.sun.javafx.tk.quantum.EmbeddedScene$3.run(EmbeddedScene.java:366)
>> 	at com.sun.javafx.application.PlatformImpl$3.run(PlatformImpl.java:119)
>> 	at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
>> 	at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2545)
>> 	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3752)
>> 	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:977)
>> 	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
>> 	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:893)
>> 	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:91)
>> 	at org.eclipse.ui.internal.Workbench$3.run(Workbench.java:565)
>> 	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
>> 	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:520)
>> 	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
>> 	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
>> 	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
>> 	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
>> 	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
>> 	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:352)
>> 	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
>> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>> 	at java.lang.reflect.Method.invoke(Method.java:597)
>> 	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:624)
>> 	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:579)
>> 	at org.eclipse.equinox.launcher.Main.run(Main.java:1433)
>> 	at org.eclipse.equinox.launcher.Main.main(Main.java:1409)
> 
> Why has the constructor been removed? Should binding work also if one
> uses the default constructor?
> 
> Tom
> 
> -- 
> B e s t S o l u t i o n . a t                        EDV Systemhaus GmbH
> ------------------------------------------------------------------------
> tom schindl                 geschäftsführer/CEO
> ------------------------------------------------------------------------
> eduard-bodem-gasse 5-7/1   A-6020 innsbruck     fax      ++43 512 935833
> http://www.BestSolution.at                      phone    ++43 512 935834

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