Hi, please oblige and review the webrev below as a fix for the issue raised in JDK-8007799 http://cr.openjdk.java.net/~msheppar/8007799/webrev.00/ Description: "Specification for the method java.util.Base64.getEncoder(int lineLength, byte[] lineSeparator) says: Parameters: lineLength - the length of each output line (rounded down to nearest multiple of 4). If lineLength <= 0 the output will not be separated in lines However if a zero line length is specified encoding methods wrap() and encode(ByteBuffer src, ByteBuffer dst, int bytesOut) return encoded string which starts from the given line separator. " the patch adds a check for linemax > 0 whenever a line separator might be added, and adds an new test case. regards Mark