EXECUTE: Create beans

public class TestBeanA {
}

@Named("test")
public class TestBeanB extends TestBeanA {

    public String getId() {
        return "abc";
    }
}

EXECUTE: Insert into a page EL #

EXECUTE: Modify class declaration as 'public class TestBeanA extends TestBeanB' and save.
ASSERT: Validation does not get stuck.
FAILURE: Method TypeInfoCollector.collectInfo(boolean) gets stuck in while-cycle.

Method getSuperclass(IType) checks that class does not extend itself - fix of JBIDE-1642, but that does not help for longer loops.