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用JAVA编写的,在做实验的时候留下来的,本来想删的,但是传上来,大家分享吧

            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_framework_Scoper_java"></a><h3>org/archive/crawler/framework/Scoper.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid unused imports such as 'CrawlURI'</td><td>
              <a href="xref/org/archive/crawler/framework/Scoper.html#31">31</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_framework_ToeThread_java"></a><h3>org/archive/crawler/framework/ToeThread.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid unused private fields such as 'STEP_PAUSING'</td><td>
              <a href="xref/org/archive/crawler/framework/ToeThread.html#56">56</a>
            </td></tr><tr class="b"><td>Avoid unused private fields such as 'STEP_EXIT_PROCESSING_LOOP'</td><td>
              <a href="xref/org/archive/crawler/framework/ToeThread.html#58">58</a>
            </td></tr><tr class="a"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/framework/ToeThread.html#172">172</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_framework_exceptions_ConfigurationException_java"></a><h3>org/archive/crawler/framework/exceptions/ConfigurationException.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>No need to import a type that's in the same package</td><td>
              <a href="xref/org/archive/crawler/framework/exceptions/ConfigurationException.html#24">24</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_framework_exceptions_FatalConfigurationException_java"></a><h3>org/archive/crawler/framework/exceptions/FatalConfigurationException.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>No need to import a type that's in the same package</td><td>
              <a href="xref/org/archive/crawler/framework/exceptions/FatalConfigurationException.html#24">24</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_frontier_AdaptiveRevisitFrontier_java"></a><h3>org/archive/crawler/frontier/AdaptiveRevisitFrontier.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid unused local variables such as 'name'</td><td>
              <a href="xref/org/archive/crawler/frontier/AdaptiveRevisitFrontier.html#175">175</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_frontier_AdaptiveRevisitHostQueueTest_java"></a><h3>org/archive/crawler/frontier/AdaptiveRevisitHostQueueTest.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/frontier/AdaptiveRevisitHostQueueTest.html#137">137</a>
            </td></tr><tr class="b"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/frontier/AdaptiveRevisitHostQueueTest.html#217">217</a>
            </td></tr><tr class="a"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/frontier/AdaptiveRevisitHostQueueTest.html#250">250</a>
            </td></tr><tr class="b"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/frontier/AdaptiveRevisitHostQueueTest.html#264">264</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_frontier_AntiCalendarCostAssignmentPolicy_java"></a><h3>org/archive/crawler/frontier/AntiCalendarCostAssignmentPolicy.java</h3><table class="bodyTable"><tr class="a"><th>Violation</th><th>Line</th></tr><tr class="b"><td>Avoid unused imports such as 'Pattern'</td><td>
              <a href="xref/org/archive/crawler/frontier/AntiCalendarCostAssignmentPolicy.html#28">28</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_frontier_BdbFrontier_java"></a><h3>org/archive/crawler/frontier/BdbFrontier.java</h3><table class="bodyTable"><tr class="a"><th>Violation</th><th>Line</th></tr><tr class="b"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/frontier/BdbFrontier.html#138">138</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_frontier_BdbMultipleWorkQueues_java"></a><h3>org/archive/crawler/frontier/BdbMultipleWorkQueues.java</h3><table class="bodyTable"><tr class="a"><th>Violation</th><th>Line</th></tr><tr class="b"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/frontier/BdbMultipleWorkQueues.html#93">93</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_frontier_DomainSensitiveFrontier_java"></a><h3>org/archive/crawler/frontier/DomainSensitiveFrontier.java</h3><table class="bodyTable"><tr class="a"><th>Violation</th><th>Line</th></tr><tr class="b"><td>Avoid unused imports such as 'QuotaEnforcer'</td><td>
              <a href="xref/org/archive/crawler/frontier/DomainSensitiveFrontier.html#41">41</a>
            </td></tr><tr class="a"><td>Avoid unused local variables such as 'name'</td><td>
              <a href="xref/org/archive/crawler/frontier/DomainSensitiveFrontier.html#87">87</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_frontier_IPQueueAssignmentPolicy_java"></a><h3>org/archive/crawler/frontier/IPQueueAssignmentPolicy.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid unused imports such as 'CrawlURI'</td><td>
              <a href="xref/org/archive/crawler/frontier/IPQueueAssignmentPolicy.html#29">29</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_frontier_RecoveryJournal_java"></a><h3>org/archive/crawler/frontier/RecoveryJournal.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/frontier/RecoveryJournal.html#325">325</a>
            </td></tr><tr class="b"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/frontier/RecoveryJournal.html#425">425</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_frontier_RecoveryJournalTest_java"></a><h3>org/archive/crawler/frontier/RecoveryJournalTest.java</h3><table class="bodyTable"><tr class="a"><th>Violation</th><th>Line</th></tr><tr class="b"><td>Avoid unused imports such as 'CandidateURI'</td><td>
              <a href="xref/org/archive/crawler/frontier/RecoveryJournalTest.html#26">26</a>
            </td></tr><tr class="a"><td>Avoid unused imports such as 'CrawlURI'</td><td>
              <a href="xref/org/archive/crawler/frontier/RecoveryJournalTest.html#27">27</a>
            </td></tr><tr class="b"><td>Avoid unused imports such as 'UURI'</td><td>
              <a href="xref/org/archive/crawler/frontier/RecoveryJournalTest.html#28">28</a>
            </td></tr><tr class="a"><td>Avoid unused imports such as 'UURIFactory'</td><td>
              <a href="xref/org/archive/crawler/frontier/RecoveryJournalTest.html#29">29</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_postprocessor_CrawlStateUpdater_java"></a><h3>org/archive/crawler/postprocessor/CrawlStateUpdater.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid unused imports such as 'IOException'</td><td>
              <a href="xref/org/archive/crawler/postprocessor/CrawlStateUpdater.html#25">25</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_prefetch_PreconditionEnforcer_java"></a><h3>org/archive/crawler/prefetch/PreconditionEnforcer.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid unnecessary return statements</td><td>
              <a href="xref/org/archive/crawler/prefetch/PreconditionEnforcer.html#136">136</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_prefetch_Preselector_java"></a><h3>org/archive/crawler/prefetch/Preselector.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/prefetch/Preselector.html#102">102</a>
            </td></tr><tr class="b"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/prefetch/Preselector.html#116">116</a>
            </td></tr><tr class="a"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/prefetch/Preselector.html#131">131</a>
            </td></tr><tr class="b"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/prefetch/Preselector.html#146">146</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_prefetch_QuotaEnforcer_java"></a><h3>org/archive/crawler/prefetch/QuotaEnforcer.java</h3><table class="bodyTable"><tr class="a"><th>Violation</th><th>Line</th></tr><tr class="b"><td>Avoid unused private fields such as 'LOGGER'</td><td>
              <a href="xref/org/archive/crawler/prefetch/QuotaEnforcer.html#43">43</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_processor_CrawlMapper_java"></a><h3>org/archive/crawler/processor/CrawlMapper.java</h3><table class="bodyTable"><tr class="a"><th>Violation</th><th>Line</th></tr><tr class="b"><td>Avoid unused imports such as 'URIException'</td><td>
              <a href="xref/org/archive/crawler/processor/CrawlMapper.html#35">35</a>
            </td></tr><tr class="a"><td>Avoid empty 'if' statements</td><td>
              <a href="xref/org/archive/crawler/processor/CrawlMapper.html#178">178</a>
            </td></tr><tr class="b"><td>Avoid empty 'if' statements</td><td>
              <a href="xref/org/archive/crawler/processor/CrawlMapper.html#202">202</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_scope_ClassicScope_java"></a><h3>org/archive/crawler/scope/ClassicScope.java</h3><table class="bodyTable"><tr class="a"><th>Violation</th><th>Line</th></tr><tr class="b"><td>Avoid unused private fields such as 'logger'</td><td>
              <a href="xref/org/archive/crawler/scope/ClassicScope.html#61">61</a>
            </td></tr><tr class="a"><td>Avoid unused local variables such as 'maxTransHops'</td><td>
              <a href="xref/org/archive/crawler/scope/ClassicScope.html#196">196</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_scope_DomainScope_java"></a><h3>org/archive/crawler/scope/DomainScope.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid unused imports such as 'DecidingScope'</td><td>
              <a href="xref/org/archive/crawler/scope/DomainScope.html#30">30</a>
            </td></tr><tr class="b"><td>Avoid unused imports such as 'BdbFrontier'</td><td>
              <a href="xref/org/archive/crawler/scope/DomainScope.html#34">34</a>
            </td></tr><tr class="a"><td>Avoid unused imports such as 'QuotaEnforcer'</td><td>
              <a href="xref/org/archive/crawler/scope/DomainScope.html#35">35</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_scope_RefinedScope_java"></a><h3>org/archive/crawler/scope/RefinedScope.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid unused imports such as 'CrawlScope'</td><td>
              <a href="xref/org/archive/crawler/scope/RefinedScope.html#29">29</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_scope_SeedCachingScope_java"></a><h3>org/archive/crawler/scope/SeedCachingScope.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid unused private fields such as 'logger'</td><td>
              <a href="xref/org/archive/crawler/scope/SeedCachingScope.html#42">42</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_scope_SurtPrefixScope_java"></a><h3>org/archive/crawler/scope/SurtPrefixScope.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid unused imports such as 'DecidingScope'</td><td>
              <a href="xref/org/archive/crawler/scope/SurtPrefixScope.html#32">32</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_settings_CrawlerSettingsTest_java"></a><h3>org/archive/crawler/settings/CrawlerSettingsTest.java</h3><table class="bodyTable"><tr class="b"><th>Violation</th><th>Line</th></tr><tr class="a"><td>Avoid unused imports such as 'File'</td><td>
              <a href="xref/org/archive/crawler/settings/CrawlerSettingsTest.html#29">29</a>
            </td></tr><tr class="b"><td>Avoid unused imports such as 'FileInputStream'</td><td>
              <a href="xref/org/archive/crawler/settings/CrawlerSettingsTest.html#30">30</a>
            </td></tr><tr class="a"><td>Avoid unused imports such as 'FileNotFoundException'</td><td>
              <a href="xref/org/archive/crawler/settings/CrawlerSettingsTest.html#31">31</a>
            </td></tr><tr class="b"><td>Avoid unused imports such as 'FileOutputStream'</td><td>
              <a href="xref/org/archive/crawler/settings/CrawlerSettingsTest.html#32">32</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_settings_DataContainer_java"></a><h3>org/archive/crawler/settings/DataContainer.java</h3><table class="bodyTable"><tr class="a"><th>Violation</th><th>Line</th></tr><tr class="b"><td>Avoid unused imports such as 'ArrayList'</td><td>
              <a href="xref/org/archive/crawler/settings/DataContainer.html#30">30</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_settings_MapType_java"></a><h3>org/archive/crawler/settings/MapType.java</h3><table class="bodyTable"><tr class="a"><th>Violation</th><th>Line</th></tr><tr class="b"><td>Avoid empty catch blocks</td><td>
              <a href="xref/org/archive/crawler/settings/MapType.html#100">100</a>
            </td></tr></table></div><div class="subsection"><a name="org_archive_crawler_settings_MapTypeTest_java"></a><h3>org/archive/crawler/settings/MapTypeTest.java</h3><table class="bodyTable"><tr class="a"><th>Violation</th><th>Line</th></tr><tr class="b"><td>Avoid empty catch blocks</td><td>
              <a href="xref