String index out of range: -1

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java.lang.StringIndexOutOfBoundsException: String index out of range: -1
	at java.lang.AbstractStringBuilder.delete(AbstractStringBuilder.java:698)
	at java.lang.StringBuffer.delete(StringBuffer.java:373)
	at coldfusion.util.Utils.collapseDotDots(Utils.java:647)
	at coldfusion.util.Utils.canonicalizeURI(Utils.java:601)
	at coldfusion.filter.PathFilter.invoke(PathFilter.java:43)
	at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:70)
	at coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:79)
	at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)
	at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
	at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:46)
	at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
	at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
	at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:62)
	at coldfusion.CfmServlet.service(CfmServlet.java:200)
	at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
	at jrun.servlet.FilterChain.doFilter(FilterChain.java:86)
	at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42)
	at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)
	at jrun.servlet.FilterChain.doFilter(FilterChain.java:94)
	at jrun.servlet.FilterChain.service(FilterChain.java:101)
	at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)
	at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
	at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:286)
	at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)
	at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203)
	at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)
	at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)