try {
            handshake();
        } catch (final IOException ex) {}
        return connection.getContent(classes);
    }

    @Override
    public Permission getPermission() throws IOException {
        return connection.getPermission();
    }

    @Override
    public InputStream getInputStream() throws IOException {
        try {
            handshake();
        } catch (final IOException ex) {}

        handshake();
        return this.connection.getContent(classes);
    }

    @Override
    public Permission getPermission() throws IOException {
        return this.connection.getPermission();
    }

    @Override
    public InputStream getInputStream() throws IOException {
        handshake();
        return this.connection.getInputStream();
    }

        testUser.setPermissions(new String[] {});
        assertNotNull(fessUserBean.getPermissions());
        assertEquals(0, fessUserBean.getPermissions().length);

        // Test with single permission
        testUser.setPermissions(new String[] { "read" });
        String[] permissions = fessUserBean.getPermissions();
        assertEquals(1, permissions.length);
        assertEquals("read", permissions[0]);

        assertArrayEquals(permissions, user.getPermissions());

        // Test with single permission
        permissions = new String[] { "read" };
        user = new TestFessUser("testuser", new String[] {}, new String[] {}, permissions);
        assertArrayEquals(permissions, user.getPermissions());

        // Test with empty permissions
        permissions = new String[] {};

    //                                                                            Accessor
    //                                                                            ========
    public String[] getPermissions() {
        return user.getPermissions();
    }

    public String[] getRoles() {
        return user.getRoleNames();
    }

    public String[] getGroups() {
        return user.getGroupNames();
    }

                return "";
            }
        });

        String[] permissions = ldapUser.getPermissions();
        assertNotNull(permissions);
        assertEquals(0, permissions.length);

        // Test that permissions are cached
        String[] permissions2 = ldapUser.getPermissions();
        assertSame(permissions, permissions2);
    }

    public void test_getPermissions_withBaseDnOnly() {

            return roles;
        }

        @Override
        public String[] getGroupNames() {
            return groups;
        }

        @Override
        public String[] getPermissions() {
            if (permissions == null) {
                final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
                final Set<String> permissionSet = new HashSet<>();