Jar Manifest Specifiction:

newline : CR LF | LF | CR (not followed by LF)

Test case:
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    byte[] mbytes =
            ("Manifest-Version: 1.0\r\n" +
             "Created-By: 1.9.0-internal (Oracle Corporation)\r\n" +
             "key1: value1\n" +
             "key2: value2\r" +
             "key3: value3\r\n" +
             "key4: value4\n E\r\n" +
             "key5: value5\r\n E\r\n" +
             "key6: value6\r E\r\n" +
             "key7: value7\r \r\n" +
             "key8: value8 \r \r\n"
            ).getBytes();
   
        Manifest m = new Manifest(new ByteArrayInputStream(mbytes));
        Attributes attr = m.getMainAttributes();

        System.out.println(" attr: ");
        attr.forEach((k, v) -> System.out.println("[" + k + "] : [" + v + "]"));
        System.out.println(" ----------------------");
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