BB Torch :: FileIOException: File Already Exists Error

i get thumbnail image using fileconnection.I get image using thread constructor. I pass the url and get image.If the two image url are same , i got exception "FileIOException: File already exists "My code is here.

FileConnection fConn = null; try { String fileString = MD5.encodeStringMD5(url); fConn = (FileConnection) Connector.open(fileTempPath+fileString+".png");

[code]....

If the urls are differ. No problem occur. But if two or three url r same , Only one image only stored and load on screen. others same url not displaying.After stored on device memory, its loadding all image.The Exception throws in this line - "fConn.create();"