Failure to find any font (probably on Embedded)

[Daniel Blaukopf]

Unless someone has removed font files from the Java directory tree - in which case all bets are off - this won’t happen with the JRE or JDK for any platform. It will only happen with Java SE Embedded Compact Profiles. So referring them to “the release notes for Java SE Embedded” seems reasonable. We can verify with the version system properties that this is actually SE Embedded before showing that message.
Daniel

On Feb 12, 2014, at 1:53 PM, Kevin Rushforth <kevin.rushforth at oracle.com> wrote:

> A more informative message and an earlier detection both sound good. Not sure about the pointer to the Wiki page, though. We haven't done that in the past that I am aware of. If we do want to go down that path, I would suggest a pointer to a single, "well-known" support page that could describe various end-user configuration issues that we might want to document.
> 
> -- Kevin
> 
> 
> David Hill wrote:
>> 
>> I am chasing a edge case that probably only happens in certain Embedded configurations. If we don't find *any* fonts, then we quietly fail and blame it on CSS :-)
>> 
>> I say blame it on CSS because the resulting hard failure is:
>> Exception in thread "JavaFX Application Thread" java.lang.NoClassDefFoundError: Could not initialize class javafx.scene.CssStyleHelper
>> This is because CSS needs a font for various calculations.
>> 
>> With Embedded, if libfontconfig is not present (or improperly configured) you will not find any fonts.
>> 
>> I would like thoughts on my putting a more informative error message out, and making zero fonts an earlier hard failure.
>> 
>> What I would really like to do is to be able to put a URL to a Fonts wiki page (like: https://wiki.openjdk.java.net/display/OpenJFX/Font+Setup) but not sure how well that would stand up to the test of time.
>> 
>> The code point in FontConfigManager is:
>> 
>>        if (anyFont == null) {
>>            if (debugFonts) {
>>                System.err.println("Fontconfig returned no fonts at all.");
>>            }
>>            fontConfigFailed = true;
>>            return;
>>