JDK7 uses /usr/lib/libfontconfig.so to help find fonts on Solaris & Linux.
In a couple of scenarios, we try to find just the first physical font that
would be used by one of fontconfig's "logical" fonts (sans, serif, monospace).

We are looking for an outline font, and it appears that on Solaris 10 x86 10/08,
the configuration results in a PCF bitmap font being the first font :

/usr/openwin/lib/X11/fonts/misc/Serif12.pcf.Z


This results in a field being left at null and we get an NPE :

java.lang.NullPointerException
        at sun.font.FontManager.getDefaultPlatformFont(FontManager.java:3427)
        at sun.java2d.SunGraphicsEnvironment$2.run(SunGraphicsEnvironment.java:263)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.java2d.SunGraphicsEnvironment.<init>(SunGraphicsEnvironment.java:164)
        at sun.awt.X11GraphicsEnvironment.<init>(X11GraphicsEnvironment.java:220)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:539)
        at java.lang.Class.newInstance0(Class.java:372)
        at java.lang.Class.newInstance(Class.java:325)
        at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:84)
        at sun.awt.X11.XToolkit.<clinit>(XToolkit.java:125)

=============

The particular call to sun.font.FontManager.getDefaultPlatformFont() is
made only on OpenJDK builds, since the closed ones use Lucida Sans Regular as
the default font, so don't hit this code.