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| <h1 class="title">Getting help with Jena</h1> |
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| <h2 class="h6 sticky-top m-0 p-2 bg-body-tertiary">On this page</h2> |
| <nav id="TableOfContents"> |
| <ul> |
| <li><a href="#email-support-lists">Email support lists</a></li> |
| <li><a href="#other-resources">Other resources</a></li> |
| <li><a href="#how-to-ask-a-good-question">How to ask a good question</a></li> |
| </ul> |
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| </aside> |
| <article class="flex-column me-lg-4"> |
| <p>We are always happy to help you get your Jena project going. Jena has been around |
| for many years, there are many archives of past questions, tutorials and articles |
| on the web. A quick search may well answer your question directly! If not, please |
| feel free to post a question to the user support list (details below).</p> |
| <h2 id="email-support-lists">Email support lists</h2> |
| <p>The <em>main user support list</em> is <code>users@jena.apache.org</code>. To join this |
| list, please send an email to: <a href="mailto:users-subscribe@jena.apache.org"> |
| <code>users-subscribe@jena.apache.org</code></a> from the email account you want |
| to subscribe with. This list is a good place to ask for advice on developing Jena-based |
| applications, or solving a problem with using Jena. <em>Please see below for notes |
| on asking good questions</em>. The list is archived at |
| <a href="https://lists.apache.org/list.html?users@jena.apache.org">lists.apache.org</a>.</p> |
| <p>The <em>developers</em> list is <code>dev@jena.apache.org</code>. To join this |
| list, please send an email to: <a href="mailto:dev-subscribe@jena.apache.org"> |
| <code>dev-subscribe@jena.apache.org</code></a> from the email account you want |
| to subscribe with. This list is a good place to discuss the development of the Jena |
| platform itself, including patches you want to submit.</p> |
| <p>To unsubscribe from a mailing list, send email to <code>LIST-unsubscribe@jena.apache.org</code>.</p> |
| <p>Full details of Apache mailing lists: <a href="https://www.apache.org/foundation/mailinglists.html">https://www.apache.org/foundation/mailinglists.html</a>.</p> |
| <h2 id="other-resources">Other resources</h2> |
| <p>There are curated collections of Jena questions on StackOverflow |
| <a href="https://stackoverflow.com/questions/tagged/jena">tagged ‘jena’</a> and |
| <a href="https://stackoverflow.com/questions/tagged/apache-jena">‘apache-jena’</a>. |
| There are also <a href="https://stackoverflow.com/questions/tagged/sparql">questions and answers about SPARQL</a>.</p> |
| <h2 id="how-to-ask-a-good-question">How to ask a good question</h2> |
| <p>Asking good questions is <strong>the best way to get good answers</strong>. Try to follow these tips:</p> |
| <ul> |
| <li> |
| <p>Make the question <strong>precise</strong> and <strong>specific</strong>. <em>“My code doesn’t work”</em>, for example, does not help us to help you |
| as much as <em>“The following SPARQL query gave me an answer I didn’t expect”</em>.</p> |
| </li> |
| <li> |
| <p>Show that you’ve <strong>tried to solve the problem yourself</strong>. Everyone who answers questions on the list |
| has a full-time job or study to do; no-one gets paid for answering these support questions. Spend |
| their goodwill wisely: <em>“Here’s the code I tried…”</em> or <em>“I read in the documentation that …”</em> shows that |
| you’ve at least made some effort to find things out for yourself.</p> |
| </li> |
| <li> |
| <p>Where appropriate <strong>show a complete test case</strong>. Seeing where your code goes wrong is generally |
| much easier if we can run it our computers. Corollaries: <strong>don’t post your entire project</strong> - take some |
| time to reduce it down to a minimal test case. <strong>Include enough data</strong> - runnable code is no help if |
| critical resources like <code>*.rdf</code> files are missing. Reducing your code down to a minimal test case |
| is often enough for you to figure out the problem yourself, which is always satisfying!</p> |
| </li> |
| <li> |
| <p><strong>Don’t re-post your question</strong> after only a few hours. People are busy, and may be in a different timezone |
| to you. If you’re not sure if your question made it to the list, <a href="https://lists.apache.org/list.html?users@jena.apache.org">look in the archive</a>.</p> |
| </li> |
| <li> |
| <p><strong>Adding lots of exclamation marks</strong> or other punctuation will <strong>not</strong> move your question up the queue. Quite the |
| reverse, in fact.</p> |
| </li> |
| <li> |
| <p>Ask questions <strong>on the list, rather than emailing the developers directly</strong>. This gives us the chance to share the |
| load of answering questions, and also ensures that answers are archived in case they’re of use to others in the future.</p> |
| </li> |
| </ul> |
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| <li><a href="#email-support-lists">Email support lists</a></li> |
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