in src/main/java/org/apache/datasketches/Files.java [180:192]
public static int readBytes(final RandomAccessFile raf, final byte[] buf) {
final int len = buf.length;
int read = 0;
try {
read = raf.read(buf);
} catch (final IOException e) {
throw new RuntimeException(LS + "RandomAccessFile read failure" + LS + e);
}
if (read < len) {
Arrays.fill(buf, read, len, (byte) 0);
}
return read;
}