I work with a lot of sample test cases that are visual. Is there any convenient way to include them in my Java source and link them in Javadocs, so my IDE can automatically
With Eclipse Luna the following works for me.
Now in Test.java's javadoc:
/**
*
*/
And Eclipse shows the image both in popup help, when you hover the mouse, and in the Javadoc View.
You can even add style="width: 100%;" to the img tag, so the image adjusts to the view/popup size.