import static org.apache.commons.codec.binary.Hex.encodeHexString; import static org.apache.commons.io.FileUtils.openInputStream; import static org.apache.commons.io.IOUtils.closeQuietly; import static org.apache.commons.io.IOUtils.toByteArray; public static String getFileHeader(File f) { if (f.length() == 0) { return null; } else { byte[] b = new byte[8]; InputStream in = null; try { in = openInp
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