EDIT: Solved with Apache Commons IO BOMInputStream
http://commons.apache.org/io/api-rel...putStream.html
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I have some text files starting with

ENTRY=

And the reading function

MyData = new BufferedReader(new InputStreamReader(new FileInputStream(inFile), Encoding));

When the file is encoded with no BOM it's read perfectly, but when contains BOM the line produces something like
?ENTRY=

How can I detect the several encodings and remove them from the stream?