JDK-8128161 : NullPointerException at getFontResourceByFileName(T2KFontFactory.java:485)
  • Type: Bug
  • Component: javafx
  • Sub-Component: graphics
  • Affected Version: fx2.0
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2011-10-18
  • Updated: 2015-06-17
  • Resolved: 2012-05-08
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Resolved: Release in which this issue/RFE has been resolved.
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JDK 7
7u6Fixed
Related Reports
Blocks :  
JDK-8127584 - WebView does not support rendering surrogate pair charcter
Duplicate :  
JDK-8126269 - got a java.lang.NullPointerException for an unknown reason
Description
error where found some font file

java.lang.NullPointerException
	at com.sun.t2k.T2KFontFactory.getFontResourceByFileName(T2KFontFactory.java:485)
	at com.sun.t2k.T2KFontFactory.getFontResource(T2KFontFactory.java:423)
	at com.sun.t2k.FallbackResource.getSlotResource(FallbackResource.java:168)
	at com.sun.t2k.T2KCompositeFontResource.getSlotResource(T2KCompositeFontResource.java:50)
	at com.sun.t2k.CompositeGlyphMapper.getSlotMapper(CompositeGlyphMapper.java:52)
	at com.sun.t2k.CompositeGlyphMapper.convertToGlyph(CompositeGlyphMapper.java:73)
	at com.sun.t2k.CompositeGlyphMapper.getGlyphCode(CompositeGlyphMapper.java:129)
	at com.sun.t2k.CharToGlyphMapper.charToGlyph(CharToGlyphMapper.java:116)
	at com.sun.t2k.CompositeStrike.getCharAdvance(CompositeStrike.java:183)
	at com.sun.webpane.sg.prism.WCFontImpl.getGlyphWidth(WCFontImpl.java:140)
	at com.sun.webpane.platform.WebPage.twkUpdateContent(Native Method)
	at com.sun.webpane.platform.WebPage.updateDirty(WebPage.java:366)
	at com.sun.webpane.platform.WebPage.updateContent(WebPage.java:632)
	at com.sun.javafx.sg.prism.NGWebView.update(NGWebView.java:52)
	at javafx.scene.web.WebView.handleStagePulse(WebView.java:562)
	at javafx.scene.web.WebView.access$100(WebView.java:55)
	at javafx.scene.web.WebView$2.pulse(WebView.java:165)
	at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:289)
	at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:398)
	at com.sun.javafx.tk.quantum.QuantumToolkit$10.run(QuantumToolkit.java:330)
	at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
	at com.sun.glass.ui.win.WinApplication.access$100(WinApplication.java:29)
	at com.sun.glass.ui.win.WinApplication$2$1.run(WinApplication.java:62)
	at java.lang.Thread.run(Unknown Source)
Comments
Unit Tests: It can't reproduce in most cases. To verify the fix you need to have a particular font file, whose name can't be find in its font file, to go through the default font name setting. By that, we can verify the font file initialization is safe now. This makes writing unit test impossible.
22-05-2012
When running the following code, same exception occurs. WebView view = new WebView(); WebEngine engine = view.getEngine(); engine.loadContent("<html><body><p>(�����������������)</p></body></html>"); Exception is below: java.lang.NullPointerException at com.sun.t2k.T2KFontFactory.getFontResourceByFileName(T2KFontFactory.java:485) at com.sun.t2k.T2KFontFactory.getFontResource(T2KFontFactory.java:423) at com.sun.t2k.LogicalFont.getSlotResource(LogicalFont.java:216) at com.sun.t2k.CompositeGlyphMapper.getSlotMapper(CompositeGlyphMapper.java:52) at com.sun.t2k.CompositeGlyphMapper.convertToGlyph(CompositeGlyphMapper.java:73) at com.sun.t2k.CompositeGlyphMapper.getGlyphCode(CompositeGlyphMapper.java:129) at com.sun.t2k.CharToGlyphMapper.charToGlyph(CharToGlyphMapper.java:116) at com.sun.t2k.CompositeStrike.getCharAdvance(CompositeStrike.java:183) at com.sun.t2k.CompositeStrike.getStringWidth(CompositeStrike.java:239) at com.sun.webpane.sg.prism.WCFontImpl.getStringLength(WCFontImpl.java:202) at com.sun.webpane.webkit.Timer.twkFireTimerEvent(Native Method) at com.sun.webpane.webkit.Timer.fireTimerEvent(Timer.java:66) at com.sun.webpane.webkit.Timer.notifyTick(Timer.java:47) at javafx.scene.web.WebEngine$PulseTimer$2.pulse(WebEngine.java:568) at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:292) at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:398) at com.sun.javafx.tk.quantum.QuantumToolkit$10.run(QuantumToolkit.java:330) at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) at com.sun.glass.ui.win.WinApplication.access$100(WinApplication.java:29) at com.sun.glass.ui.win.WinApplication$2$1.run(WinApplication.java:62) at java.lang.Thread.run(Thread.java:722)
21-11-2011