assertEquals("", Strings.commonPrefix("", ""));
    assertEquals("", Strings.commonPrefix("abc", ""));
    assertEquals("", Strings.commonPrefix("", "abc"));
    assertEquals("", Strings.commonPrefix("abcde", "xyz"));
    assertEquals("", Strings.commonPrefix("xyz", "abcde"));
    assertEquals("", Strings.commonPrefix("xyz", "abcxyz"));
    assertEquals("a", Strings.commonPrefix("abc", "aaaaa"));

	listMultipartUploadsResponse.CommonPrefixes = make([]CommonPrefix, len(multipartsInfo.CommonPrefixes))
	for index, commonPrefix := range multipartsInfo.CommonPrefixes {
		listMultipartUploadsResponse.CommonPrefixes[index] = CommonPrefix{
			Prefix: s3EncodeName(commonPrefix, encodingType),
		}
	}
	listMultipartUploadsResponse.Uploads = make([]Upload, len(multipartsInfo.Uploads))

	}

	for i, test := range testCases {
		foundPrefix := lcp(test.prefixes, true)
		if foundPrefix != test.commonPrefix {
			t.Fatalf("Test %d: Common prefix found: `%v`, expected: `%v`", i+1, foundPrefix, test.commonPrefix)
		}
	}
}

func TestGetMinioMode(t *testing.T) {
	testMinioMode := func(expected string) {
		if mode := getMinioMode(); mode != expected {

			if delimiter != "" {
				i := strings.Index(objName[len(prefix):], delimiter)
				if i >= 0 {
					commonPrefix := objName[:len(prefix)+i+1]
					if len(listObjectsInfo.Prefixes) == 0 || commonPrefix != listObjectsInfo.Prefixes[len(listObjectsInfo.Prefixes)-1] {
						listObjectsInfo.Prefixes = append(listObjectsInfo.Prefixes, commonPrefix)
						count++
					}
					goto next
				}
			}

   * b.toString().startsWith(prefix)}, taking care not to split surrogate pairs. If {@code a} and
   * {@code b} have no common prefix, returns the empty string.
   *
   * @since 11.0
   */
  public static String commonPrefix(CharSequence a, CharSequence b) {
    checkNotNull(a);
    checkNotNull(b);

    int maxPrefixLength = min(a.length(), b.length());
    int p = 0;
    while (p < maxPrefixLength && a.charAt(p) == b.charAt(p)) {