Summary
-------

`DataOutputStream::writeUTF` should explicitly document that a `UTFDataFormatException` is thrown if the input string is too long.

Problem
-------
`DataOutputStream::writeUTF` will throw a `UTFDataFormatException` exception if the encoded UTF-8 character string is longer than 65535.

Solution
--------

Document that `DataOutputStream::writeUTF` will throw a `UTFDataFormatException` exception if the encoded UTF-8 character string is longer than 65535.

Specification
-------------

`java.io.DataOutputStream`:

```
@@ -317,7 +317,10 @@
      * thrice the length of <code>str</code>.
      *
      * @param      str   a string to be written.
-     * @exception  IOException  if an I/O error occurs.
+     * @throws     UTFDataFormatException  if the modified UTF-8 encoding of
+     *             {@code str} would exceed 65535 bytes in length
+     * @throws     IOException  if some other I/O error occurs.
+     * @see        #writeChars(String)
      */
     public final void writeUTF(String str) throws IOException {}
```