How to attach links like github or crucible to the jira using java code?

[Akash Rathore]

I looked into it and found that it can be done using 

RemoteIssueLink link = new RemoteIssueLinkBuilder().issueId(issue.getId()).url("http://someUrl").summary("My web link").build();
	ComponentAccessor.getComponent(RemoteIssueLinkManager.class).createRemoteIssueLink(link, user);

this code but as the createRemoteIssueLink is deprecated and I am using jira-api version 7 I am not sure how to do it? 

I have found some other ways but I am getting the following exception 

java.lang.IllegalStateException: ComponentAccessor has not been initialised.

This is not expected to occur on a production system.
Developers that encounter this message within a unit test
should use n MockitoMocksInContainer rule to initialize mockito and ComponentAccessor.
For more detailed explanation read the documentation
for MockComponentWorker in the jira-tests artifact for more information
about what causes this error and how to address it.

I have looked into the questions related to this exception but nothing helped. 

So, the question is how to create remote links using java in the newer versions?