Fix for out of range exception that occurs if apk file is a directory but the extension is still attempted to be resolved
Fix for out of range exception that occurs if apk file is a directory but the extension is still attempted to be resolved

xph906/FlowDroidNew,secure-software-engineering/soot-infoflow-android,jameswhang/flowdroid,wsnavely/soot-infoflow-android,matedealer/soot-infoflow-android,uds-se/soot-infoflow-android,lilicoding/soot-infoflow-android,mohsinjuni/soot-infoflow-android,droidsec-cn/soot-infoflow-android,kaunder/soot-infoflow-android,Machiry/soot-infoflow-android,xph906/FlowDroidNew,Xiejiayun/soot-infoflow-android