en DZone Java Zone https://dzone.com/java Recent posts in Java on DZone.com Stop Writing Excel Specs: A Markdown-First Approach to Enterprise Java https://dzone.com/articles/stop-writing-excel-specs-markdown-first-approach <h1>Attention Required! | Cloudflare</h1><div id="cf-wrapper"> <p>Please enable cookies.</p> <div id="cf-error-details"> <p> <h2><span data-translate="unable_to_access">You are unable to access</span> dzone.com</h2> </p> <div> <div> <div> <h2 data-translate="blocked_why_headline">Why have I been blocked?</h2> <p data-translate="blocked_why_detail">This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. 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Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.</p> </div> </div> </div> <p> <span>Cloudflare Ray ID: <strong>9a508ab92b1dd356</strong></span> <span>•</span> <span id="cf-footer-item-ip"> Your IP: <span id="cf-footer-ip">5.1.64.146</span> <span>•</span> </span> <span><span>Performance &amp; security by</span> <a href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" rel="noopener noreferrer" target="_blank">Cloudflare</a></span> </p> </div> </div><br><span style='font: #ff0000'>Generated by <a href='https://github.com/andreskrey/readability.php'>Readability.php</a>.</span> Tue, 25 Nov 2025 16:00:00 GMT https://dzone.com/articles/3614822 Faisal Khatri Building a Retrieval-Augmented Generation (RAG) System in Java With Spring AI, Vertex AI, and BigQuery https://dzone.com/articles/rag-system-java-spring-ai-vertex-bigquery <h1>Attention Required! | Cloudflare</h1><div id="cf-wrapper"> <p>Please enable cookies.</p> <div id="cf-error-details"> <p> <h2><span data-translate="unable_to_access">You are unable to access</span> dzone.com</h2> </p> <div> <div> <div> <h2 data-translate="blocked_why_headline">Why have I been blocked?</h2> <p data-translate="blocked_why_detail">This website is using a security service to protect itself from online attacks. 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Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.</p> </div> </div> </div> <p> <span>Cloudflare Ray ID: <strong>9a281c412f7cd2ea</strong></span> <span>•</span> <span id="cf-footer-item-ip"> Your IP: <span id="cf-footer-ip">5.1.64.146</span> <span>•</span> </span> <span><span>Performance &amp; security by</span> <a href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" rel="noopener noreferrer" target="_blank">Cloudflare</a></span> </p> </div> </div><br><span style='font: #ff0000'>Generated by <a href='https://github.com/andreskrey/readability.php'>Readability.php</a>.</span> Tue, 18 Nov 2025 15:00:06 GMT https://dzone.com/articles/3613537 Nicolas Duminil From Symptoms to Solutions: Troubleshooting Java Memory Leaks and OutOfMemoryError https://dzone.com/articles/troubleshooting-java-memory-leaks-oom <h1>Attention Required! | Cloudflare</h1><div id="cf-wrapper"> <p>Please enable cookies.</p> <div id="cf-error-details"> <p> <h2><span data-translate="unable_to_access">You are unable to access</span> dzone.com</h2> </p> <div> <div> <div> <h2 data-translate="blocked_why_headline">Why have I been blocked?</h2> <p data-translate="blocked_why_detail">This website is using a security service to protect itself from online attacks. 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Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.</p> </div> </div> </div> <p> <span>Cloudflare Ray ID: <strong>9a281c432ce6e866</strong></span> <span>•</span> <span id="cf-footer-item-ip"> Your IP: <span id="cf-footer-ip">5.1.64.146</span> <span>•</span> </span> <span><span>Performance &amp; security by</span> <a href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" rel="noopener noreferrer" target="_blank">Cloudflare</a></span> </p> </div> </div><br><span style='font: #ff0000'>Generated by <a href='https://github.com/andreskrey/readability.php'>Readability.php</a>.</span> Tue, 18 Nov 2025 14:00:00 GMT https://dzone.com/articles/3613525 Ram Lakshmanan When Memory Overflows: Too Many ApplicationContexts in Spring Integration Tests https://dzone.com/articles/spring-integration-tests-many-applicationcontexts <h1>Attention Required! | Cloudflare</h1><div id="cf-wrapper"> <p>Please enable cookies.</p> <div id="cf-error-details"> <p> <h2><span data-translate="unable_to_access">You are unable to access</span> dzone.com</h2> </p> <div> <div> <div> <h2 data-translate="blocked_why_headline">Why have I been blocked?</h2> <p data-translate="blocked_why_detail">This website is using a security service to protect itself from online attacks. 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Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.</p> </div> </div> </div> <p> <span>Cloudflare Ray ID: <strong>99e32ffdec0830f9</strong></span> <span>•</span> <span id="cf-footer-item-ip"> Your IP: <span id="cf-footer-ip">5.1.64.146</span> <span>•</span> </span> <span><span>Performance &amp; security by</span> <a href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" rel="noopener noreferrer" target="_blank">Cloudflare</a></span> </p> </div> </div><br><span style='font: #ff0000'>Generated by <a href='https://github.com/andreskrey/readability.php'>Readability.php</a>.</span> Thu, 13 Nov 2025 17:00:00 GMT https://dzone.com/articles/3607162 Constantin Kwiatkowski How to Map PostgreSQL JSON Data Types in Java Using asentinel-orm https://dzone.com/articles/postgresql-json-mapping-java-asentinel-orm <h1>Attention Required! | Cloudflare</h1><div id="cf-wrapper"> <p>Please enable cookies.</p> <div id="cf-error-details"> <p> <h2><span data-translate="unable_to_access">You are unable to access</span> dzone.com</h2> </p> <div> <div> <div> <h2 data-translate="blocked_why_headline">Why have I been blocked?</h2> <p data-translate="blocked_why_detail">This website is using a security service to protect itself from online attacks. 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Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.</p> </div> </div> </div> <p> <span>Cloudflare Ray ID: <strong>99e330027b7671d9</strong></span> <span>•</span> <span id="cf-footer-item-ip"> Your IP: <span id="cf-footer-ip">5.1.64.146</span> <span>•</span> </span> <span><span>Performance &amp; security by</span> <a href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" rel="noopener noreferrer" target="_blank">Cloudflare</a></span> </p> </div> </div><br><span style='font: #ff0000'>Generated by <a href='https://github.com/andreskrey/readability.php'>Readability.php</a>.</span> Tue, 11 Nov 2025 19:00:00 GMT https://dzone.com/articles/3603181 Karthik Puthraya Gatherers in Java: What They Are and Why They Matter https://dzone.com/articles/java-gatherers-explained <h1>Attention Required! | Cloudflare</h1><div id="cf-wrapper"> <p>Please enable cookies.</p> <div id="cf-error-details"> <p> <h2><span data-translate="unable_to_access">You are unable to access</span> dzone.com</h2> </p> <div> <div> <div> <h2 data-translate="blocked_why_headline">Why have I been blocked?</h2> <p data-translate="blocked_why_detail">This website is using a security service to protect itself from online attacks. 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Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.</p> </div> </div> </div> <p> <span>Cloudflare Ray ID: <strong>99e330047b99d398</strong></span> <span>•</span> <span id="cf-footer-item-ip"> Your IP: <span id="cf-footer-ip">5.1.64.146</span> <span>•</span> </span> <span><span>Performance &amp; security by</span> <a href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" rel="noopener noreferrer" target="_blank">Cloudflare</a></span> </p> </div> </div><br><span style='font: #ff0000'>Generated by <a href='https://github.com/andreskrey/readability.php'>Readability.php</a>.</span> Tue, 11 Nov 2025 17:00:00 GMT https://dzone.com/articles/3607070 Ammar Husain The JVM Pause That Wasn't: A War Story https://dzone.com/articles/the-jvm-pause-that-wasnt-a-war-story <h1>Attention Required! | Cloudflare</h1><div id="cf-wrapper"> <p>Please enable cookies.</p> <div id="cf-error-details"> <p> <h2><span data-translate="unable_to_access">You are unable to access</span> dzone.com</h2> </p> <div> <div> <div> <h2 data-translate="blocked_why_headline">Why have I been blocked?</h2> <p data-translate="blocked_why_detail">This website is using a security service to protect itself from online attacks. 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Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.</p> </div> </div> </div> <p> <span>Cloudflare Ray ID: <strong>99b60cd23a712580</strong></span> <span>•</span> <span id="cf-footer-item-ip"> Your IP: <span id="cf-footer-ip">5.1.64.146</span> <span>•</span> </span> <span><span>Performance &amp; security by</span> <a href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" rel="noopener noreferrer" target="_blank">Cloudflare</a></span> </p> </div> </div><br><span style='font: #ff0000'>Generated by <a href='https://github.com/andreskrey/readability.php'>Readability.php</a>.</span> Wed, 05 Nov 2025 18:00:00 GMT https://dzone.com/articles/3603753 Cheol Jeon Top Takeaways From Devoxx Belgium 2025 https://dzone.com/articles/top-takeaways-from-devoxx-belgium-2025 <h1>Attention Required! | Cloudflare</h1><div id="cf-wrapper"> <p>Please enable cookies.</p> <div id="cf-error-details"> <p> <h2><span data-translate="unable_to_access">You are unable to access</span> dzone.com</h2> </p> <div> <div> <div> <h2 data-translate="blocked_why_headline">Why have I been blocked?</h2> <p data-translate="blocked_why_detail">This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.</p> </div> <div> <h2 data-translate="blocked_resolve_headline">What can I do to resolve this?</h2> <p data-translate="blocked_resolve_detail">You can email the site owner to let them know you were blocked. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.</p> </div> </div> </div> <p> <span>Cloudflare Ray ID: <strong>999cae8b4d9ea062</strong></span> <span>•</span> <span id="cf-footer-item-ip"> Your IP: <span id="cf-footer-ip">5.1.64.146</span> <span>•</span> </span> <span><span>Performance &amp; security by</span> <a href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" rel="noopener noreferrer" target="_blank">Cloudflare</a></span> </p> </div> </div><br><span style='font: #ff0000'>Generated by <a href='https://github.com/andreskrey/readability.php'>Readability.php</a>.</span> Tue, 04 Nov 2025 13:00:00 GMT https://dzone.com/articles/3604620 Gunter Rotsaert Building Reactive Microservices With Spring WebFlux on Kubernetes https://dzone.com/articles/building-reactive-microservices-with-spring-webflu <h1>Attention Required! | Cloudflare</h1><div id="cf-wrapper"> <p>Please enable cookies.</p> <div id="cf-error-details"> <p> <h2><span data-translate="unable_to_access">You are unable to access</span> dzone.com</h2> </p> <div> <div> <div> <h2 data-translate="blocked_why_headline">Why have I been blocked?</h2> <p data-translate="blocked_why_detail">This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.</p> </div> <div> <h2 data-translate="blocked_resolve_headline">What can I do to resolve this?</h2> <p data-translate="blocked_resolve_detail">You can email the site owner to let them know you were blocked. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.</p> </div> </div> </div> <p> <span>Cloudflare Ray ID: <strong>99730f4e9daedba7</strong></span> <span>•</span> <span id="cf-footer-item-ip"> Your IP: <span id="cf-footer-ip">5.1.64.146</span> <span>•</span> </span> <span><span>Performance &amp; security by</span> <a href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" rel="noopener noreferrer" target="_blank">Cloudflare</a></span> </p> </div> </div><br><span style='font: #ff0000'>Generated by <a href='https://github.com/andreskrey/readability.php'>Readability.php</a>.</span> Thu, 30 Oct 2025 14:00:00 GMT https://dzone.com/articles/3604168 Mikhail Povolotskii Writing (Slightly) Cleaner Code With Collections and Optionals https://dzone.com/articles/cleaner-code-with-collections-and-optionals <h1>Attention Required! | Cloudflare</h1><div id="cf-wrapper"> <p>Please enable cookies.</p> <div id="cf-error-details"> <p> <h2><span data-translate="unable_to_access">You are unable to access</span> dzone.com</h2> </p> <div> <div> <div> <h2 data-translate="blocked_why_headline">Why have I been blocked?</h2> <p data-translate="blocked_why_detail">This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.</p> </div> <div> <h2 data-translate="blocked_resolve_headline">What can I do to resolve this?</h2> <p data-translate="blocked_resolve_detail">You can email the site owner to let them know you were blocked. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.</p> </div> </div> </div> <p> <span>Cloudflare Ray ID: <strong>999cae8d4feddc8c</strong></span> <span>•</span> <span id="cf-footer-item-ip"> Your IP: <span id="cf-footer-ip">5.1.64.146</span> <span>•</span> </span> <span><span>Performance &amp; security by</span> <a href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" rel="noopener noreferrer" target="_blank">Cloudflare</a></span> </p> </div> </div><br><span style='font: #ff0000'>Generated by <a href='https://github.com/andreskrey/readability.php'>Readability.php</a>.</span> Mon, 27 Oct 2025 19:00:00 GMT https://dzone.com/articles/3602507 Greg Brown Set Up Spring Data Elasticsearch With Basic Authentication https://dzone.com/articles/setup-spring-data-elasticsearch-54-with-basic-auth <h1>Attention Required! | Cloudflare</h1><div id="cf-wrapper"> <p>Please enable cookies.</p> <div id="cf-error-details"> <p> <h2><span data-translate="unable_to_access">You are unable to access</span> dzone.com</h2> </p> <div> <div> <div> <h2 data-translate="blocked_why_headline">Why have I been blocked?</h2> <p data-translate="blocked_why_detail">This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.</p> </div> <div> <h2 data-translate="blocked_resolve_headline">What can I do to resolve this?</h2> <p data-translate="blocked_resolve_detail">You can email the site owner to let them know you were blocked. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.</p> </div> </div> </div> <p> <span>Cloudflare Ray ID: <strong>99730f50ac4064b2</strong></span> <span>•</span> <span id="cf-footer-item-ip"> Your IP: <span id="cf-footer-ip">5.1.64.146</span> <span>•</span> </span> <span><span>Performance &amp; security by</span> <a href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" rel="noopener noreferrer" target="_blank">Cloudflare</a></span> </p> </div> </div><br><span style='font: #ff0000'>Generated by <a href='https://github.com/andreskrey/readability.php'>Readability.php</a>.</span> Mon, 27 Oct 2025 17:00:00 GMT https://dzone.com/articles/3554157 Arnošt Havelka Diagnosing and Fixing a Page Fault Performance Issue With Arm64 Atomics https://dzone.com/articles/arm64-atomics-page-fault-performance-issue <h1>Attention Required! | Cloudflare</h1><div id="cf-wrapper"> <p>Please enable cookies.</p> <div id="cf-error-details"> <p> <h2><span data-translate="unable_to_access">You are unable to access</span> dzone.com</h2> </p> <div> <div> <div> <h2 data-translate="blocked_why_headline">Why have I been blocked?</h2> <p data-translate="blocked_why_detail">This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.</p> </div> <div> <h2 data-translate="blocked_resolve_headline">What can I do to resolve this?</h2> <p data-translate="blocked_resolve_detail">You can email the site owner to let them know you were blocked. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page.</p> </div> </div> </div> <p> <span>Cloudflare Ray ID: <strong>99730f52af7a9273</strong></span> <span>•</span> <span id="cf-footer-item-ip"> Your IP: <span id="cf-footer-ip">5.1.64.146</span> <span>•</span> </span> <span><span>Performance &amp; security by</span> <a href="https://www.cloudflare.com/5xx-error-landing" id="brand_link" rel="noopener noreferrer" target="_blank">Cloudflare</a></span> </p> </div> </div><br><span style='font: #ff0000'>Generated by <a href='https://github.com/andreskrey/readability.php'>Readability.php</a>.</span> Fri, 24 Oct 2025 12:00:07 GMT https://dzone.com/articles/3603323 Dave Neary