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IntelliJ IDEA 2025.1 introduces comprehensive Java 24 support, makes Kotlin K2 the default mode, delivers a major AI assistant upgrade with free unlimited code completion, and adds numerous productivity enhancements such as improved debugging, UI redesign, containerfile support, and tighter Gradle integration.
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This tutorial explains how to prepare the environment, install the CodeGPT plugin, configure DeepSeek API keys and model settings in IntelliJ IDEA, and use the AI assistant for code generation, completion, explanation, and troubleshooting, while also showing usage statistics and a complete Java example.
This article explains why and how to use Maven's dependency:analyze command in IntelliJ IDEA to identify used undeclared and unused declared dependencies, offering practical steps, risk considerations, and tips for maintaining clean Java backend projects.