import loop?

I saw this in a thread dump while the css-validator was eating all the
cpu:

...
        at org.w3c.css.parser.CssFouffa.handleImport(CssFouffa.java:344)
        at org.w3c.css.parser.analyzer.CssParser.importDeclaration(CssParser.java:596)
        at org.w3c.css.parser.analyzer.CssParser.parserUnit(CssParser.java:334)
        at org.w3c.css.parser.CssFouffa.parseStyle(CssFouffa.java:295)
        at org.w3c.css.parser.CssFouffa.handleImport(CssFouffa.java:344)
        at org.w3c.css.parser.analyzer.CssParser.importDeclaration(CssParser.java:596)
        at org.w3c.css.parser.analyzer.CssParser.parserUnit(CssParser.java:334)
        at org.w3c.css.parser.CssFouffa.parseStyle(CssFouffa.java:295)
        at org.w3c.css.parser.CssFouffa.handleImport(CssFouffa.java:344)
...

(full thread dump attached).

I suspect a problem here...
Thanks,

-- 
Yves Lafon - W3C
"Baroula que barouleras, au tiéu toujou t'entourneras."