java-access restriction errors on sun.misc.Cleaner and sun.nio.ch.DirectBuffer

[Arvind Ik Chari]

Hello,

I am using an open source library that uses the classes "sun.misc.cleaner" and "sun.nio.ch/DirectBuffer"... the problem is that in Eclipse I am getting the following errors-

Access restriction: The type Cleaner is not accessible due to restriction on required library C:\Program Files\Java\jre7\lib\rt.jar


Access restriction: The type DirectBuffer is not accessible due to restriction on required library C:\Program Files\Java\jre7\lib\rt.jar
How do I resolve these errors?

Thanks,
Arvind.

[fred rosenberger]

Personally, I have no idea, but I found this article by spending a few moments googling. It looks promising.

[Arvind Ik Chari]

Hello,

I found a solution on stackoverflow-- for reference I am posting that solution below... It also mentions Fred's solution but also says that that solution is more like a crack/hack- and that the recommended way to solve this problem is this--

Go to the Build Path settings in the project properties.
Remove the JRE System Library
Add it back; Select "Add Library" and select the JRE System Library. The default worked for me.
This works because you have multiple classes in different jar files. Removing and re-adding the jre lib will make the right classes be first. If you want a fundamental solution make sure you exclude the jar files with the same classes.

Reference--> http://stackoverflow.com/questions/860187/access-restriction-on-class-due-to-restriction-on-required-library-rt-jar

Sincerely,
Arvind.