| Mistake | Consequence | Fix | |---------|-------------|-----| | Installing Oracle JDK | Licensing issues; unnecessary | Uninstall, use OpenJDK | | Setting JDK 8 | Build fails with "Unsupported Java version" | Upgrade to Java 11+ | | Multiple JDKs installed | Gradle picks wrong one | Set JAVA_HOME explicitly | | Downloading Java from random websites | Security risk | Use sources from Section 4 |
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Visit the official Oracle website to download the JDK: unnecessary | Uninstall