Compiling Atlassian JIRA and having hamcrest-all 1.2 maven dependency resolution problem

So you are compiling Atlassian JIRA from source, and the compilation fails with:
Failed to execute goal on project atlassian-secure-random: Could not resolve dependencies for project com.atlassian.security:atlassian-secure-random:jar:3.2.1: Could not find artifact org.hamcrest:hamcrest-all:jar:1.2 in central (https://maven.your-corporation.com/artifactory/repo)

Of course, you started wandering around teh Internet, and was shocked to see, that https://code.google.com/p/hamcrest/ only knows about hamcrest-all 1.1 and 1.3... wtf?!

The missing version is hosted by Atlassian. You should set your stuff up to look up https://maven.atlassian.com/content/groups/public/ also.
Look for Philipp Steinwender's answer at https://answers.atlassian.com/questions/192831/maven-dependency-com-atlassian-jira-plugins for a maven settings.xml fragment.