for the following example,
==========================

the files in

p4359386 directory, a.java and c.java

p4359386/a.java
/c.java


a.java is
==========

package p4359386;

public class a
{
}

c.java is
=========

package p4359386;

public class c
{
}

do a

javadoc a.java c.java

and observe that the "Package" link is disabled from

deprecated-list.html
index-all.html
help-doc.html
overview-tree.html

whereas it is 'enabled' from

index.html
package-tree.html
a.html
c.html

Though the argument can be that the first four are generic pages, common for most javadoc runs, this introduces a confusing behaviour. The behaviour should be uniform and the std doclet should introduce links uniformly.