Special characters in resource urls are throwing errors

Caused by: java.net.URISyntaxException: Illegal character in path at index 20: /images/ddtree/black spinner/6.png
	at java.net.URI$Parser.fail(URI.java:2809)
	at java.net.URI$Parser.checkChars(URI.java:2982)
	at java.net.URI$Parser.parseHierarchical(URI.java:3066)
	at java.net.URI$Parser.parse(URI.java:3024)
	at java.net.URI.<init>(URI.java:578)
	at java.net.URI.create(URI.java:840)
	... 54 more
2010-06-16 14:57:01,065 ERROR [http-8080-Processor21] [[Catalina].[localhost].[/confluence].[noop]] invoke Servlet.service() for servlet noop threw exception
java.lang.IllegalArgumentException
	at java.net.URI.create(URI.java:842)
	at com.atlassian.plugin.servlet.util.DefaultPathMapper.normalize(DefaultPathMapper.java:163)
	at com.atlassian.plugin.servlet.util.DefaultPathMapper.getAll(DefaultPathMapper.java:123)
	at com.atlassian.plugin.servlet.DefaultServletModuleManager.getFilters(DefaultServletModuleManager.java:191)