b10: regression?

[Richard Bair]

Definitely file a bug. CheckBox should never (ever!) require the Screen to be queried, since looking up the Screens takes time and will negatively impact startup.

Thanks
Richard

On May 31, 2012, at 3:32 PM, Florian Brunner wrote:

> Hi,
> 
> On Linux (32-bit) with JavaFX 2.2 b08 I was able to instantiate a control in a unit test, e.g.
> 
> import javafx.scene.control.CheckBox;
> import org.junit.After;
> import org.junit.Before;
> import org.junit.Test;
> 
> 
> public class MyTest {
> 
>    public MyTest() {
>    }
> 
> 
>    @Before
>    public void setUp() {
>        CheckBox cb = new CheckBox("test");
>    }
> 
>    @After
>    public void tearDown() {
>    }
> 
> 
>    @Test
>    public void someTest() {
>        System.out.println("someTest");
>    }
> 
> }
> 
> With b10 I'm getting an error:
> 
> java.lang.ExceptionInInitializerError
> 	at mypackage.MyTest.setUp(MyTest.java:28)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:601)
> 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
> 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
> 	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
> 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
> 	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
> 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
> 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
> 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
> 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
> 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
> 	at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
> 	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:236)
> 	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:134)
> 	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:113)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:601)
> 	at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
> 	at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
> 	at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
> 	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:103)
> 	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:74)
> Caused by: java.lang.NullPointerException
> 	at com.sun.glass.ui.Screen.getMainScreen(Screen.java:15)
> 	at com.sun.javafx.tk.quantum.QuantumToolkit.getPrimaryScreen(QuantumToolkit.java:589)
> 	at javafx.stage.Screen.updateConfiguration(Screen.java:102)
> 	at javafx.stage.Screen.checkDirty(Screen.java:97)
> 	at javafx.stage.Screen.getPrimary(Screen.java:176)
> 	at com.sun.javafx.Utils.isQVGAScreen(Utils.java:813)
> 	at javafx.scene.control.UAStylesheetLoader$1.run(UAStylesheetLoader.java:69)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javafx.scene.control.UAStylesheetLoader.loadUAStylesheet(UAStylesheetLoader.java:58)
> 	at javafx.scene.control.UAStylesheetLoader.doLoad(UAStylesheetLoader.java:51)
> 	at javafx.scene.control.Control.<clinit>(Control.java:95)
> 	... 31 more
> 
> 
> Is this a regression or a desired behaviour? If it's a desired behaviour: Is there a way to write some simple JUnit tests for controls?
> 
> Regards,
> Florian