Update tests from Groovy 2.4.7 to 2.4.12.
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
- <version>2.4.7</version>
+ <version>2.4.12</version>
<scope>test</scope>
</dependency>
<!-- Used for testing HttpAppender -->
