# Maven tab

`File | Project Structure | Artifacts | <artifact> | Maven`

Use this tab to specify settings for Maven projects with WAR artifacts.

![the Maven tab](https://resources.jetbrains.com.cn/help/img/idea/2026.2/maven_tab.png)

| Item | Description |
| --- | --- |
| Unpack nested archives |    Select this option if you want IntelliJ IDEA to unpack nested JAR files. For [example](#example), you have a multi-module Maven project where a module depends on the other one and has an EAR or WAR artifact. In this case, when you import or deploy such module, IntelliJ IDEA creates a JAR file with module dependencies. If you want a dependency to such module be deployed as a folder instead of a JAR file, select this option.      > **Note:** > Don't forget to re-import your changes. IntelliJ IDEA will remind you to do so with the appropriate popup.    |
| Show content of elements |     Select this option if you want the contents of certain elements to be displayed in the layout tree. Click ![the Browse button](https://resources.jetbrains.com.cn/help/img/idea/2026.2/app.general.ellipsis.svg) to select the needed elements:        * Show Library Files    * Show Content of Included Artifacts    * Show Content of JavaEE Facets    * Show Content of JPA Resources    |

Nested archives are packed:

![JAR files with dependencies](https://resources.jetbrains.com.cn/help/img/idea/2026.2/ear_exploded_jar.png)

Nested archives are unpacked:

![Unpacked into directories](https://resources.jetbrains.com.cn/help/img/idea/2026.2/ear_exploded_directory.png)