Question

This question is generic, but is also related to Amazon Web Services.

I am trying to deploy a Java application to an Amazon cloud server, but the application fails to start because it uses AWT fonts (see the following lines):

TextImage testImage = new TextImageImpl(128, 32, new Margin(0, 8));

// Declare or read the fonts you need
Font header = new Font("Sans-Serif", Font.BOLD, 24);

// 1. specify font and write text with a newline
testImage.useFont(header).writeLine(text).newLine();

The issue I am having is that Amazon’s virtual servers don’t have proper fonts installed and as a result you cannot do image/chart related stuff in your application. See this for more information.
Their customer support suggested using a custom VM image (with either fonts or Oracle JDK installed since Oracle JDK comes with a set of fonts) which is not a clean solution for me.

My question is:
How can I rewrite my code, or package it in a different way, so that it runs on a fresh installation of Open JDK with no additional fonts needed (if at all possible).

By the way, here is a part of the error I’m getting:

Oct 9, 2011 11:05:18 AM org.apache.catalina.core.StandardWrapperValve
invoke SEVERE: Servlet.service() for servlet ZipGrocery Application
threw exception java.lang.Error: Probable fatal error:No fonts found.
at sun.font.FontManager.getDefaultPhysicalFont(FontManager.java:1088)
at sun.font.FontManager.initialiseDeferredFont(FontManager.java:967)
at
sun.font.CompositeFont.doDeferredInitialisation(CompositeFont.java:254)
at sun.font.CompositeFont.getSlotFont(CompositeFont.java:334) at
sun.font.CompositeStrike.getStrikeForSlot(CompositeStrike.java:77) at
sun.font.CompositeStrike.getFontMetrics(CompositeStrike.java:93) at
sun.font.FontDesignMetrics.initMatrixAndMetrics(FontDesignMetrics.java:358)
at sun.font.FontDesignMetrics.(FontDesignMetrics.java:349) at
sun.font.FontDesignMetrics.getMetrics(FontDesignMetrics.java:301) at
sun.java2d.SunGraphics2D.getFontMetrics(SunGraphics2D.java:787) at
nl.jamiecraane.imagegenerator.impl.TextImageImpl.getFontMetrics(TextImageImpl.java:219)
at
nl.jamiecraane.imagegenerator.impl.TextImageImpl.writeLine(TextImageImpl.java:212)

Thanks

Answer 1

If you had an actual font you had proper licensing to distribute, you could package, load, and register the font as part of your distributed application.

Font font = Font.createFont(Font.TRUETYPE_FONT, new File("A.ttf"));
return font.deriveFont(24f);

I’ve found OpenJDK to be buggy and unreliable for production environments. I’d just go with Oracle’s JDK if you can.