assertEquals("1", true, StringUtil.contains("a", 'a'));
        assertEquals("2", true, StringUtil.contains("abc", 'b'));
        assertEquals("3", false, StringUtil.contains("abc", 'd'));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testContains2() throws Exception {
        assertEquals("1", true, StringUtil.contains("a", "a"));

        DfsReferral dr = null;
        long now = System.currentTimeMillis();

        if (DISABLED || root.equals("IPC$")) {
            return null;
        }
        /* domains that can contain DFS points to maps of roots for each
         */
        HashMap domains = getTrustedDomains(auth);
        if (domains != null) {
            domain = domain.toLowerCase();

    /**
     * charを含んでいるかどうか返します。
     *
     * @param str
     *            文字列
     * @param ch
     *            char
     * @return charを含んでいるかどうか
     */
    public static boolean contains(final String str, final char ch) {
        if (isEmpty(str)) {
            return false;
        }
        return str.indexOf(ch) >= 0;
    }

    /**
     * 文字列を含んでいるかどうか返します。
     *

            return parent.size();
        }

        public boolean isEmpty() {
            return parent.isEmpty();
        }

        public boolean contains(final Object o) {
            return parent.contains(o);
        }

        public Iterator<E> iterator() {
            return parent.iterator();
        }

        public Object[] toArray() {

                final Set<String> permissions = stream(item.getPermissions()).get(stream -> stream.collect(Collectors.toSet()));
                for (final String roleValue : roleSet) {
                    if (permissions.contains(roleValue)) {
                        final Map<String, String> map = new HashMap<>(2);
                        map.put(Constants.ITEM_LABEL, item.getLabel());

        Object obj;

        synchronized ( this.inFlightLookups ) {
            if ( this.inFlightLookups.contains(name) == false ) {
                this.inFlightLookups.add(name);
                return null;
            }
            while ( this.inFlightLookups.contains(name) ) {
                try {
                    this.inFlightLookups.wait();
                }

     * which hold TGT retrieved from KDC. If multiple TGT are contained, the
     * first one will be used to retrieve user principal.
     * 
     * @param subject
     *            represents the user who perform Kerberos authentication.
     *            It contains tickets retrieve from KDC.
     */
    public Kerb5Authenticator ( Subject subject ) {
        this.subject = subject;

            if (!switchFlg) {
                boolean contains = doc.get("content_description").toString().toLowerCase().contains(query1);
                if (!contains) {
                    switchFlg = true;
                }
            } else {
                assertTrue(doc.get("content_description").toString().toLowerCase().contains(query2), doc.toString());
            }
        }
    }

    @Test

                // single level
                assertTrue("Link not found " + link, listLinks.contains(link));
            }
            else {
                link = link.substring(0, firstSep + 1);
                // single level
                assertTrue("First component of link not found" + link, listLinks.contains(link));
            }
        }
    }


    @Test

                entries = doDfsRootEnum(tc, locator, locator.getAddress());
                for ( int ei = 0; ei < entries.length; ei++ ) {
                    FileEntry e = entries[ ei ];
                    if ( !set.contains(e) && ( fnf == null || fnf.accept(parent, e.getName()) ) ) {
                        set.add(e);
                    }
                }
            }
            catch ( IOException ioe ) {