Error generated by XML-RPC client when handling a random exception (NoSuchElementException)

xml-that-causes-error.xml

<?xml version='1.0' encoding='UTF-8'?>
<methodResponse>
  <params>
    <param>
      <value>
        <struct>
          <member>
            <name>status</name>
            <value>
              <string>FAIL</string>
            </value>
          </member>
          <member>
            <name>return</name>
            <value>
              <string></string>
            </value>
          </member>
          <member>
            <name>output</name>
            <value>
              <string></string>
            </value>
          </member>
          <member>
            <name>error</name>
            <value>
              <string>#<NoSuchElementException org.openqa.selenium.NoSuchElementException: No element with tag :a and attributes {:text "http://www.adobe.com/macromedia/style_guide/buttons"} could be found on the page.
              System info: os.name: 'Windows 7', os.arch: 'x86', os.version: '6.1', java.version: '1.6.0_23'
              Driver info: driver.version: unknown>
            </string>
          </value>
        </member>
        <member>
          <name>traceback</name>
          <value>
            <string></string>
          </value>
        </member>
      </struct>
    </value>
  </param>
</params>
</methodResponse>