*/
    @Override
    public void close () {
        // nothing to clean up
        this.next = null;
    }

    @Override
    public void remove() {
        throw new UnsupportedOperationException("remove");
    }

        } catch (final IndexOutOfBoundsException e) {
            throw new NoSuchElementException("index=" + index);
        }
    }

    @Override
    public void remove() {
        throw new ClUnsupportedOperationException("remove");
    }

        exception.expect(ClUnsupportedOperationException.class);
        exception.expectMessage(is("remove"));
        final Vector<String> vector = new Vector<String>();
        vector.add("a");
        final EnumerationIterator<String> itr = new EnumerationIterator<String>(vector.elements());
        itr.remove();
    }

    /**
     * @throws Exception
     */
    @Test

    /**
     * 
     */
    private void doClose () {
        this.treeHandle.release();
        this.next = null;
    }


    @Override
    public void remove () {
        throw new UnsupportedOperationException("remove");
    }

# Punctuation tokens to remove
,
.
`
-
_
=
?
'
|
"
(
)
{
}
[
]
<
>
*
#
&
^
$
@
!
~
:
;
+
/
\
《
》
—
－
，
。
、
：
；
！
·
？
“
”
）
（
【
】
［
］
●
# the line below contains an IDEOGRAPHIC SPACE character (Used as a space in Chinese)
　

# English Stop Words

            return parent.toArray(a);
        }

        public boolean add(final E e) {
            return parent.add(e);
        }

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

        public boolean containsAll(final Collection<?> c) {
            return parent.containsAll(c);
        }

    }

    @Override
    public void putAll(final Map<? extends Object, ? extends Object> t) {
        getProperties().putAll(t);
    }

    @Override
    public Object remove(final Object key) {
        return getProperties().remove(key);
    }

    @Override
    public void save(final OutputStream out, final String comments) {
        throw new UnsupportedOperationException("Unsupported operation.");
    }

                paramMap.put(HcHttpClient.PROXY_CREDENTIALS_PROPERTY, new UsernamePasswordCredentials(
                        paramMap.remove(Param.Client.PROXY_USERNAME).toString(), paramMap.remove(Param.Client.PROXY_PASSWORD).toString()));
            }
        } else {
            initializeDefaultHttpProxy(paramMap);
        }

        crawlerClientFactory = factory;

        crawlingInfoHelper.putToInfoMap(Constants.DATA_INDEX_SIZE, Long.toString(indexUpdateCallback.getDocumentSize()));

        for (final String sid : sessionIdList) {
            // remove config
            ComponentUtil.getCrawlingConfigHelper().remove(sid);
        }

    }

    protected static class DataCrawlingThread extends Thread {

        private final DataConfig dataConfig;

        crawlingConfigMap.put(sessionCountId, crawlingConfig);
        count++;
        return sessionCountId;
    }

    public void remove(final String sessionCountId) {
        crawlingConfigMap.remove(sessionCountId);
    }

    public CrawlingConfig get(final String sessionCountId) {
        return crawlingConfigMap.get(sessionCountId);
    }