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coding guidelines.</p><p>Research shows that 80% of software development time is spent on software maintenance, including source code interpretation, source code refactoring, source code maintenance, etc.</p><p>Agreeing on and enforcing code specifications and guidelines can help improve code readability, maintain code ownership by the development team,</p><p>help engineers understand new code quickly and deeply, and simplify maintenance costs.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="idea-programming-template">IDEA Programming Template<a href="#idea-programming-template" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h2><p>The following guides you to import the <code>rmq_codeStyle.xml</code> encoding specification file and <code>Apache.xml</code> contribution license file in IDEA.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="import-code-style">Import Code Style<a href="#import-code-style" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h3><p>1.File Path: <code>rocketmq/style/rmq_codestyle.xml</code></p><p>2.Apple OS Import: <code>IntelliJ IDEA > File > Settings > Editor > Code Style</code> enter the <code>Code Style</code>, select the <code>Manage > Import</code> to import the <code>rmq_codestyle.xml</code> and name it <code>Scheme</code></p><p>3.Windows OS Import: <code>IntelliJ IDEA > File > Settings > Editor > Code Style</code> enter the <code>Code Style</code>, select the <code>Show Scheme Actions > Import Scheme > Intellij IDEA code style XML</code> to import the <code>rmq_codestyle.xml</code></p><p><img loading="lazy" alt="1656682140788" 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" width="813" height="204" class="img_ev3q"></p><p>4.The imported <code>rmq_codeStyle.xml</code> specifies the code's indentation format, naming conventions, standard Java conventions, and so on</p><p>5.After IDEA is set, the code is automatically reformat to pass the code style validate of Travis CI</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="import-apache-v2">Import Apache V2<a href="#import-apache-v2" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h2><p>1.File Path: <code>rocketmq/style/copyright/Apache.xml</code></p><p>2.Import: <code>IntelliJ IDEA > File > Settings > Editor > Copyright > Copyright Profiles</code> enter the <code>Copyright Profiles</code>, select the <code>import</code> to import the <code>Apache.xml</code></p><p><img loading="lazy" alt="1656683960857" src="/assets/images/2_ApacheV2-540c72638cb4bd717aec875802b4a096.png" width="848" height="215" class="img_ev3q"></p><p>3.License: <a href="https://www.apache.org/licenses/LICENSE-2.0" target="_blank" rel="noopener noreferrer">Apache License, Version 2.0</a></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="select-apache-copyright">Select Apache Copyright<a href="#select-apache-copyright" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h2><p><img loading="lazy" alt="1656684219109" src="data:image/png;base64,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" width="866" height="160" class="img_ev3q"></p><p>Refer to <a href="https://www.oschina.net/question/54100_9455" target="_blank" rel="noopener noreferrer">Five open source protocols(GPL,LGPL,BSD,MIT,Apache) - OSCHINA - Chinese open source technology exchange community</a> For details</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="remove-javadoc-label">Remove Javadoc Label<a href="#remove-javadoc-label" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h2><ol><li><p>select the <code>Settings > Editor > File and Code Templates > Includes</code></p></li><li><p>enter the <code>File Header</code> , remove the Javadoc label from it</p></li></ol><p><img loading="lazy" alt="1656684039505" 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" 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