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DevOps / Gradle8 Interview Questions

How do you apply a plugin in Gradle?

The modern, recommended way is the plugins {} block at the top of a build script, referencing the plugin by its ID:

plugins {
    id 'java'
    id 'org.springframework.boot' version '3.3.0'
}

Core plugins (like java) need no version since they ship with Gradle itself; community plugins from the Plugin Portal need an explicit version. An older, still-supported alternative is apply plugin: 'java' using the legacy syntax, but the plugins {} block is preferred because it lets Gradle validate and resolve plugin versions upfront, before the rest of the script runs, and it supports better IDE tooling and version-conflict detection than the legacy form.

For plugins meant to be shared across a project's own subprojects (rather than pulled from the Plugin Portal), a precompiled script plugin in buildSrc or an included build lets internal conventions be applied the same id '...' way as any external plugin.

Which syntax is the modern, recommended way to apply a plugin?
Why is the plugins {} block generally preferred over the legacy apply plugin syntax?

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