for k, v := range b.cachesRoot {
		tmp := make([]string, len(v))
		copy(tmp, v)
		dst2[k] = tmp
	}

	return dst, dst2
}

// deleteAll will delete all on disk data for ALL caches.
// Deletes are performed concurrently.
func (b *bucketMetacache) deleteAll() {
	ctx := context.Background()

	objAPI := newObjectLayerFn()
	if objAPI == nil {
		return
	}

	ez, ok := objAPI.(deleteAllStorager)

        dataHelper.clearUrlPattern(sessionId);
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.service.impl.UrlFilterService#deleteAll()
     */
    @Override
    public void deleteAll() {
        dataHelper.clearUrlPattern();
    }

    /*
     * (non-Javadoc)
     *
     * @see

            public void insert(UrlQueue<?> urlQueue) {
            }

            @Override
            public void delete(String sessionId) {
            }

            @Override
            public void deleteAll() {
            }

            @Override
            public void offerAll(String sessionId, List<UrlQueue<?>> newUrlQueueList) {
            }

            @Override

        dataHelper.removeUrlQueueList(sessionId);
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.service.UrlQueueService#deleteAll()
     */
    @Override
    public void deleteAll() {
        dataHelper.clearUrlQueueList();
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.service.UrlQueueService#offerAll(java.lang.String,

     *
     * @return HTML response redirecting to the failure URL list page
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse deleteall() {
        verifyToken(this::asListHtml);
        failureUrlService.deleteAll(failureUrlPager);
        failureUrlPager.clear();
        saveInfo(messages -> messages.addSuccessFailureUrlDeleteAll(GLOBAL));
        return redirect(getClass());
    }

                                                        </p>
                                                    </div>
                                                    <la:form action="/admin/searchlist/deleteall">
                                                    <div class="modal-footer justify-content-between">
                                                            <la:hidden property="q"/>

 *   <li>{@code add(ElevateWord elevateWord)} - Adds a new elevate word to the settings.</li>
 *   <li>{@code delete(String elevateWord)} - Deletes an elevate word from the settings.</li>
 *   <li>{@code deleteAll()} - Deletes all elevate words from the settings.</li>
 * </ul>
 *
 * <p>Protected Constructor:</p>
 * <ul>

        }
        arraySettings.delete(BAD_WORD_SETTINGS_KEY, badWord);
    }

    /**
     * Delete all bad words.
     */
    public void deleteAll() {
        if (logger.isInfoEnabled()) {
            logger.info("Deleting all bad words: index={}", arraySettings.arraySettingsIndexName);
        }
        arraySettings.delete(BAD_WORD_SETTINGS_KEY);
    }

        assertEquals(2, settings.badword().get(false).length);
        assertEquals(value1, settings.badword().get(false)[0]);
        assertEquals(value3, settings.badword().get(false)[1]);

        settings.badword().deleteAll();
        assertEquals(0, settings.badword().get(false).length);
    }

        service.delete(sessionId);

        // Verify
        verify(dataHelper).clearUrlPattern(sessionId);
    }

    public void test_deleteAll() {
        // Execute
        service.deleteAll();

        // Verify
        verify(dataHelper).clearUrlPattern();
    }

    public void test_getIncludeUrlPatternList() {
        // Setup
        String sessionId = "session123";