It is better to add new Maven repository (preferably using your own artifactory) to your project instead of installing it to your local repository.
Maven syntax:
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.3</version>
</dependency>
...
<repositories>
<repository>
<id>codelds</id>
<url>https://code.lds.org/nexus/content/groups/main-repo</url>
</repository>
</repositories>
Grails example:
mavenRepo "https://code.lds.org/nexus/content/groups/main-repo"
build 'com.oracle:ojdbc6:11.2.0.3'