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

Question

I\'m attempting to compile Java 1.4 code that was created by IBM\'s WSDL2Java on Java5 without recreating

Answer 1

In my case there was a mismatch between the build path JRE and installed JRE on execution environment. I moved into Project > Properties > Java compiler. There was a warning message at the bottom.

I clicked on the links 'Installed JRE', 'Execution environment', 'Java build path' and changed the JDK version to 1.7 and the warning disappeared.