java.lang.StringIndexOutOfBoundsException: String index out of range: -1
>>Mozilla/5.0 (compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; Nokia; 800C)

at java.lang.String.substring(String.java:1931)
at java.lang.String.substring(String.java:1904)
at net.sourceforge.wurfl.core.utils.StringUtils.indexOfAnyOrLength(StringUtils.java:201)
at net.sourceforge.wurfl.core.matchers.NokiaMatcher.lookForMatchingUserAgent(NokiaMatcher.java:49)
at net.sourceforge.wurfl.core.matchers.AbstractMatcher.applyConclusiveMatch(AbstractMatcher.java:170)
at net.sourceforge.wurfl.core.matchers.AbstractMatcher.match(AbstractMatcher.java:120)
at net.sourceforge.wurfl.core.matchers.MatcherChain.match(MatcherChain.java:86)
at net.sourceforge.wurfl.core.matchers.MatcherManager.matchRequest(MatcherManager.java:92)
at net.sourceforge.wurfl.core.DefaultWURFLService.getDeviceForRequest(DefaultWURFLService.java:124)
at net.sourceforge.wurfl.core.DefaultWURFLManager.getDeviceForRequest(DefaultWURFLManager.java:99)
at net.sourceforge.wurfl.core.DefaultWURFLManager.getDeviceForRequest(DefaultWURFLManager.java:115)