【发布时间】:2018-02-12 01:59:06
【问题描述】:
我有一个 JavaFX 测试,它只在 windows 中失败,但在 OSX 和 Linux 中运行良好
这是堆栈跟踪:
编辑:1
Running com.myproject.meditor.SLIVCodeAreaTest
Tests run: 17, Failures: 0, Errors: 17, Skipped: 0, Time elapsed: 6.656 sec <<< FAILURE! - in com.myproject.meditor.SLIVCodeAreaTest
testRHBlock(com.myproject.meditor.SLIVCodeAreaTest) Time elapsed: 0 sec <<< ERROR!
java.lang.ExceptionInInitializerError: null
at com.sun.glass.ui.Screen.getScreens(Screen.java:70)
at com.sun.glass.ui.Screen.getMainScreen(Screen.java:61)
at com.sun.javafx.font.PrismFontFactory.getSystemFontSize(PrismFontFactory.java:1911)
at com.sun.javafx.font.PrismFontLoader.getSystemFontSize(PrismFontLoader.java:240)
at javafx.scene.text.Font.getDefaultSystemFontSize(Font.java:71)
at javafx.scene.text.Font.getDefault(Font.java:86)
at javafx.scene.text.Text.getFont(Text.java:478)
at javafx.scene.text.Text.getFontInternal(Text.java:487)
at javafx.scene.text.Text.access$100(Text.java:95)
at javafx.scene.text.Text$1.getFont(Text.java:206)
at com.sun.javafx.text.GlyphLayout.breakRuns(GlyphLayout.java:174)
at com.sun.javafx.text.PrismTextLayout.buildRuns(PrismTextLayout.java:770)
at com.sun.javafx.text.PrismTextLayout.layout(PrismTextLayout.java:1021)
at com.sun.javafx.text.PrismTextLayout.ensureLayout(PrismTextLayout.java:223)
at com.sun.javafx.text.PrismTextLayout.getBounds(PrismTextLayout.java:246)
at javafx.scene.text.TextFlow.computePrefWidth(TextFlow.java:203)
at javafx.scene.Parent.prefWidth(Parent.java:915)
at javafx.scene.layout.Region.prefWidth(Region.java:1419)
at org.fxmisc.richtext.ParagraphBox.computePrefWidth(ParagraphBox.java:199)
at org.fxmisc.richtext.ParagraphBox.computeMinWidth(ParagraphBox.java:191)
at javafx.scene.Parent.minWidth(Parent.java:943)
at javafx.scene.layout.Region.minWidth(Region.java:1383)
at org.fxmisc.flowless.VerticalHelper.minBreadth(OrientationHelper.java:234)
at org.fxmisc.flowless.OrientationHelper.minBreadth(OrientationHelper.java:44)
at org.reactfx.collection.MappedList.get(MappedList.java:27)
at org.reactfx.collection.MemoizationListImpl.force(MemoizationList.java:121)
at org.fxmisc.flowless.SizeTracker.breadthFor(SizeTracker.java:161)
at org.fxmisc.flowless.CellPositioner.getSizedCell(CellPositioner.java:130)
at org.fxmisc.flowless.CellPositioner.placeStartAt(CellPositioner.java:95)
at org.fxmisc.flowless.Navigator.placeStartAtMayCrop(Navigator.java:183)
at org.fxmisc.flowless.Navigator.visit(Navigator.java:111)
at org.fxmisc.flowless.StartOffStart.accept(TargetPosition.java:49)
at org.fxmisc.flowless.Navigator.layoutChildren(Navigator.java:67)
at javafx.scene.Parent.layout(Parent.java:1087)
at org.fxmisc.flowless.VirtualFlow.layoutChildren(VirtualFlow.java:165)
at javafx.scene.Parent.layout(Parent.java:1087)
at org.fxmisc.flowless.VirtualFlow.visibleCells(VirtualFlow.java:138)
at com.myproject.util.javafx.codearea.SEditor.<init>(SEditor.java:659)
at com.myproject.util.javafx.codearea.SEditor.<init>(SEditor.java:607)
at com.myproject.util.javafx.codearea.SCodeArea.<init>(SCodeArea.java:122)
at com.myproject.meditor.SLICodeArea.<init>(SLICodeArea.java:124)
at com.myproject.meditor.SLICodeArea.<init>(SLICodeArea.java:114)
at com.myproject.meditor.SLItemCodeArea.<init>(SLICodeArea.java:106)
at com.myproject.meditor.SLItemCodeArea.<init>(SLICodeArea.java:103)
at com.myproject.meditor.SLIVCodeAreaTest.<clinit>(SLIVCodeAreaTest.java:14)
编辑:2
从堆栈跟踪来看,触发异常(SLIVCodeAreaTest.java:14)的部分代码在代码部分private static final SLIVCodeArea的声明中:
import static org.junit.Assert.assertTrue;
import org.junit.Test;
public class SLIVCodeAreaTest {
private static final SLIVCodeArea sEditor = new SLIVCodeArea(new SLICodeArea()) {
@Override protected void updateVisibleParagraphRange() {} };
private static final VEditorProblemList sProblemList =
new VEditorProblemList(sEditor, new SimpleObjectProperty<>(), false);
static { sEditor.aggregatedTextChanges().setAggregationEnabled(false); }
编辑:3
如果我从上面的初始化部分中删除关键字 static ,则错误的堆栈跟踪变为:
Running com.myproject.meditor.SLIVCodeAreaTest
Tests run: 17, Failures: 0, Errors: 17, Skipped: 0, Time elapsed: 1.124 sec <<< FAILURE! - in Running com.myproject.meditor.SLIVCodeAreaTest
testRHBlock(com.myproject.meditor.SLIVCodeAreaTest) Time elapsed: 0 sec <<< ERROR!
java.lang.RuntimeException: Internal graphics not initialized yet
at com.sun.glass.ui.Screen.getScreens(Screen.java:70)
at com.sun.glass.ui.Screen.getMainScreen(Screen.java:61)
at com.sun.javafx.font.PrismFontFactory.getSystemFontSize(PrismFontFactory.java:1911)
at com.sun.javafx.font.PrismFontLoader.getSystemFontSize(PrismFontLoader.java:240)
at javafx.scene.text.Font.getDefaultSystemFontSize(Font.java:71)
at javafx.scene.text.Font.getDefault(Font.java:86)
at javafx.scene.text.Text.getFont(Text.java:478)
at javafx.scene.text.Text.getFontInternal(Text.java:487)
at javafx.scene.text.Text.access$100(Text.java:95)
at javafx.scene.text.Text$1.getFont(Text.java:206)
at com.sun.javafx.text.GlyphLayout.breakRuns(GlyphLayout.java:174)
at com.sun.javafx.text.PrismTextLayout.buildRuns(PrismTextLayout.java:770)
at com.sun.javafx.text.PrismTextLayout.layout(PrismTextLayout.java:1021)
at com.sun.javafx.text.PrismTextLayout.ensureLayout(PrismTextLayout.java:223)
at com.sun.javafx.text.PrismTextLayout.getBounds(PrismTextLayout.java:246)
at javafx.scene.text.TextFlow.computePrefWidth(TextFlow.java:203)
at javafx.scene.Parent.prefWidth(Parent.java:915)
at javafx.scene.layout.Region.prefWidth(Region.java:1419)
at org.fxmisc.richtext.ParagraphBox.computePrefWidth(ParagraphBox.java:199)
at org.fxmisc.richtext.ParagraphBox.computeMinWidth(ParagraphBox.java:191)
at javafx.scene.Parent.minWidth(Parent.java:943)
at javafx.scene.layout.Region.minWidth(Region.java:1383)
at org.fxmisc.flowless.VerticalHelper.minBreadth(OrientationHelper.java:234)
at org.fxmisc.flowless.OrientationHelper.minBreadth(OrientationHelper.java:44)
at org.reactfx.collection.MappedList.get(MappedList.java:27)
at org.reactfx.collection.MemoizationListImpl.force(MemoizationList.java:121)
at org.fxmisc.flowless.SizeTracker.breadthFor(SizeTracker.java:161)
at org.fxmisc.flowless.CellPositioner.getSizedCell(CellPositioner.java:130)
at org.fxmisc.flowless.CellPositioner.placeStartAt(CellPositioner.java:95)
at org.fxmisc.flowless.Navigator.placeStartAtMayCrop(Navigator.java:183)
at org.fxmisc.flowless.Navigator.visit(Navigator.java:111)
at org.fxmisc.flowless.StartOffStart.accept(TargetPosition.java:49)
at org.fxmisc.flowless.Navigator.layoutChildren(Navigator.java:67)
at javafx.scene.Parent.layout(Parent.java:1087)
at org.fxmisc.flowless.VirtualFlow.layoutChildren(VirtualFlow.java:165)
at javafx.scene.Parent.layout(Parent.java:1087)
at org.fxmisc.flowless.VirtualFlow.visibleCells(VirtualFlow.java:138)
at com.myproject.util.javafx.codearea.SEditor.<init>(SEditor.java:659)
at com.myproject.util.javafx.codearea.SEditor.<init>(SEditor.java:607)
at com.myproject.util.javafx.codearea.SCodeArea.<init>(SCodeArea.java:122)
at com.myproject.meditor.SLICodeArea.<init>(SLICodeArea.java:124)
at com.myproject.meditor.SLICodeArea.<init>(SLICodeArea.java:114)
at com.myproject.meditor.SLICodeArea.<init>(SLICodeArea.java:106)
at com.myproject.meditor.SLICodeArea.<init>(SLICodeArea.java:103)
at com.myproject.meditor.SLIVCodeAreaTest.<init>(SLIVCodeAreaTest.java:14)
PS : 测试在 OSX 中使用和不使用 static 关键字。
相同的代码在 Linux 和 MacOS 中运行良好,但在 Windows 中失败。 有谁知道为什么?
【问题讨论】:
-
请在您的问题中包含 整个 堆栈跟踪。您调用了哪一行代码触发了异常?
-
screens 是全局变量还是局部变量?我认为你的方法 staticScreaan_getScreens 返回 null 所以你的表有 null 元素。
-
@VGR 见 Edit : 1 , Edit : 2 和 Edit : 3 ,我已经添加了堆栈跟踪以及触发异常的部分代码。
-
很可能,hannoveraner 部分正确。除非已初始化 javafx.application.Application 实例(由 JavaFX,而不是您),否则 JavaFX 根本无法工作。您可能需要从带有
@Before注释的方法中调用Application.launch。
标签: java linux windows macos javafx