Iterator<String> itr2 = Iterators.concat(itr1, singletonIterator("d"));
    assertThat(itr2.next()).isEqualTo("c");
    assertThat(itr2.next()).isEqualTo("d");
  }

  /** Illustrates the somewhat bizarre behavior when a null is passed in. */
  public void testConcatContainingNull() {
    Iterator<Iterator<Integer>> input =
        (Iterator<Iterator<Integer>>)

				"application/http",
				"application/hyperstudio",
				"application/ibe-key-request+xml",
				"application/ibe-pkg-reply+xml",
				"application/ibe-pp-data",
				"application/iges",
				"application/illustrator",
				"application/im-iscomposing+xml",
				"application/index",
				"application/index.cmd",
				"application/index.obj",
				"application/index.response",
				"application/index.vnd",

 * <code>java.io.File</code> usage; a '/' at the beginning of the second
 * parameter will still use the server component of the first parameter. The
 * examples below illustrate the resulting URLs when this second contructor
 * argument is used.
 *
 * <table border="1">
 * <caption>Examples Of SMB URLs When Augmented With A Second Constructor Parameter</caption>
 * <tr>

 * <code>java.io.File</code> usage; a '/' at the beginning of the second
 * parameter will still use the server component of the first parameter. The
 * examples below illustrate the resulting URLs when this second constructor
 * argument is used.
 *
 * <table border="1">
 * <caption>Examples Of SMB URLs When Augmented With A Second Constructor Parameter</caption>
 * <tr >

Consider a compiled a package containing the package clause
<code>package math</code>, which exports function <code>Sin</code>, and
installed the compiled package in the file identified by
<code>"lib/math"</code>.
This table illustrates how <code>Sin</code> is accessed in files
that import the package after the
various types of import declaration.
</p>

<pre class="grammar">
Import declaration          Local name of Sin