Why is jar packaging needed to access package visibility members?

javax.swing.text.html.HTMLDocument has (default) package access level members (eg base).
Simply creating a class in the javax.swing.text.html package does not give me access to the package members of HTMLDocument.
However, if I jar my class with the rt.jar, then it can access the package members of HTMLDocument.
Why is this?
And more importantly, is there another way around this?.. Can I jar my classes in a separate jar file?
-Kane

more info on this problem:
It seems that a different classloader is used for the classes in the jdk than standard user classes. Classes in the jdk are loaded by the bootstrap class loader. So user classes that "pretend" to be part of that package are not recognized unless they are actually a part of the rt.jar file.
hack solution: use the SystemClassLoader to load those user classes.
ClassLoader loader = ClassLoader.getSystemClassLoader();
loader.loadClass("myWannaBeSystemClass");
Still looking for more elegant solution...
but hopefully this will hold me over

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>
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i develope in the last month a full automate packager for flash access 2.0, written in AIR.
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Why is jar packaging needed to access package visibility members?

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