As WWJ is not available in public maven repositories you must install it manually via mvn install
to your local maven repository.
All that belongs to the past.
Eclipse
Maven + Maven Plugin 4 Eclipse
Installed NASA World Wind Libraries
If not check these install instructions: https://github.com/jimjonesbr/de.ifgi.europa/wiki
First you have to copy the following snippet to you pom.xml of your maven project. If your pom.xml contains a repositories tag just copy what´s inside.
<repositories>
<repository>
<id>NASA Worldwind for Java Repo</id>
<url>https://github.com/mpfeil/mvn-repo/raw/master</url>
</repository>
</repositories>
After copying the repository you have to add the following dependencies also to the pom.xml file. Same as above if your pom.xml contains a dependencies tag just copy what´s inside.
<dependencies>
<dependency>
<groupId>de.ifgi.nasa.wwj</groupId>
<artifactId>gdal</artifactId>
<version>1.5</version>
</dependency>
<dependency>
<groupId>de.ifgi.nasa.wwj</groupId>
<artifactId>gluegen</artifactId>
<version>1.5</version>
</dependency>
<dependency>
<groupId>de.ifgi.nasa.wwj</groupId>
<artifactId>worldwind</artifactId>
<version>1.5</version>
</dependency>
<dependency>
<groupId>de.ifgi.nasa.wwj</groupId>
<artifactId>worldwindx</artifactId>
<version>1.5</version>
</dependency>
<dependency>
<groupId>de.ifgi.nasa.wwj</groupId>
<artifactId>jogl</artifactId>
<version>1.5</version>
</dependency>
<dependencies>
Now you´re almost done. Save your pom.xml file and the maven repository is updating.