[Barcode4j-users] [ barcode4j-Support Requests-2508239 ] Unable to Open Font Properties File

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Support Requests item #2508239, was opened at 2009-01-14 22:37
Message generated for change (Comment added) made by jmaerki
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Category: General Problem
Group: None
>Status: Pending
Priority: 5
Private: No
Submitted By: Barry James (b_james)
Assigned to: Nobody/Anonymous (nobody)
Summary: Unable to Open Font Properties File

Initial Comment:
I have successfully created a PDF417 2D barcode using Barcode4J on my PC when running in Eclipse.  When I try running the same code on our company server, calling it from Oracle PL/SQL, I get the error below on the call to generateBarcode.  I have added System.setProperty("java.awt.headless", "true") to my code to account for the info in 4.3. What do I need to do to run Barcode4J on a "headless" server?  But it did not make a difference.  I'm not sure as to how to proceed.  Please help.

Thanks,
Barry

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unable to open font properties file
java.lang.NullPointerException
       at java.util.Properties$LineReader.readLine(Properties.java)

       at java.util.Properties.load(Properties.java)

       at sun.awt.FontConfiguration$PropertiesHandler.load(FontConfiguration.java:1738)

       at sun.awt.FontConfiguration.loadProperties(FontConfiguration.java:371)

       at sun.awt.FontConfiguration.readFromResource(FontConfiguration.java:278)

       at sun.awt.FontConfiguration.readFontConfigFile(FontConfiguration.java:127)

       at sun.awt.FontConfiguration.<init>(FontConfiguration.java:75)

       at oracle.aurora.awt.OracleFontConfiguration.<init>(OracleFontConfiguration.java:33)

       at oracle.aurora.awt.OracleGraphicsEnvironment.createFontConfiguration(OracleGraphicsEnvironment.java:25)

       at sun.java2d.SunGraphicsEnvironment$1.run(SunGraphicsEnvironment.java:186)

       at java.security.AccessController.doPrivileged(Native Method)

       at sun.java2d.SunGraphicsEnvironment.<init>(SunGraphicsEnvironment.java:94)

       at oracle.aurora.awt.OracleGraphicsEnvironment.<init>(OracleGraphicsEnvironment.java:14)

       at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

       at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java)

       at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java)

       at java.lang.reflect.Constructor.newInstance(Constructor.java)

       at java.lang.Class.newInstance0(Class.java)

       at java.lang.Class.newInstance(Class.java)

       at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:68)

       at java.awt.image.BufferedImage.createGraphics(BufferedImage.java:1141)

       at org.krysalis.barcode4j.output.bitmap.BitmapBuilder.prepareGraphics2D(BitmapBuilder.java:89)

       at org.krysalis.barcode4j.output.bitmap.BitmapCanvasProvider.establishDimensions(BitmapCanvasProvider.java:99)

       at org.krysalis.barcode4j.output.Canvas.establishDimensions(Canvas.java:54)

       at org.krysalis.barcode4j.impl.DefaultTwoDimCanvasLogicHandler.startBarcode(DefaultTwoDimCanvasLogicHandler.java:67)

       at org.krysalis.barcode4j.impl.pdf417.PDF417LogicImpl.generateBarcodeLogic(PDF417LogicImpl.java:236)

       at org.krysalis.barcode4j.impl.pdf417.PDF417Bean.generateBarcode(PDF417Bean.java:80)

       at SampleBitmapBarcodeWithBean.getBarcode(SampleBitmapBarcodeWithBean.java:275)

       at SampleBitmapBarcodeWithBean.GetImage(SampleBitmapBarcodeWithBean.java:210)

       at SampleBitmapBarcodeWithBean.main(SampleBitmapBarcodeWithBean.java:112)


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>Comment By: Jeremias Mrki (jmaerki)
Date: 2009-01-15 12:41

Message:
That exception doesn't look like any normal reaction on a headless server
I've ever seen before. I'd even dare say this might be a corrupt JDK/JRE
installation.

Anyway, setting the "java.awt.headless" property must occurs early enough
to have an effect. I don't think it's a good idea to use
System.setProperty() for this. A better idea is to specify it at VM startup
as a parameter.

You didn't say which JRE you're using. Usually, java.awt.headless works
fine. If it doesn't help you might find two alternatives here:
http://xmlgraphics.apache.org/fop/0.95/graphics.html#batik

There's nothing Barcode4J can do any better to improve the situation I'm
afraid. Good luck! Please close this issue when you've solved the problem.
Thanks.

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