Access restriction on class due to restriction on required library rt.jar?

There's another solution that also works.

1. Go to the Build Path settings in the project properties.
2. Remove the JRE System Library
3. 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.

For me I have: javax.xml.soap.SOAPPart in three different jars: axis-saaj-1.4.jar, saaj-api-1.3.jar and the rt.jar

http://www.digizol.com/2008/09/eclipse-access-restriction-on-library.html worked best for me.

On Windows: Windows -> Preferences -> Java -> Compiler -> Errors/Warnings-> Deprecated and restricted API -> Forbidden reference (access rules): -> change to warning

On Mac OS X/Linux: Eclipse -> Preferences -> Java -> Compiler -> Errors/Warnings-> Deprecated and restricted API -> Forbidden reference (access rules): -> change to warning

I met the same problem. I found the answer on the website: http://www.17ext.com.
First, delete the JRE System Libraries. Then, import JRE System Libraries again.