@Override
            public void visitEnd() {
                exportPackageAnnotation = Optional.of(new ExportPackageAnnotation(major, minor, micro, qualifier));
            }
Picks up classes used in class files.

@author Tony Vaagenes
@author ollivir
@author gjoranv
bundle-plugin/src/main/java/com/yahoo/container/plugin/classanalysis/AnalyzeClassVisitor.java