I don’t think Kayaman’s answer is sufficient as the question is how to use the @value tag in javadocs.
I think the problem lies in the fact that the value of the field being referenced is not a literal value.
In eclipse, when you have
/**
* {@value #ob2} object2 description
*/
public static final Object ob2 = new Object();
the generated Javadocs are {@value #ob2} object2 description. However, when you have
/**
* {@value #ob2} object2 description
*/
public static final String ob2 = "hello";
the generated Javadocs are “hello” object2 description (the expected output).
So, in summary, you are using the @value tag correctly in the javadocs but the value will only be rendered correctly if the field has been initialised with a literal value.