How to use

isSyntheticPublic

method

in

org.codehaus.groovy.ast.ClassNode

if (cNode.isSyntheticPublic()) revertVisibility(cNode);
else addError("Can't use " + MY_TYPE_NAME + " for class '" + cNode.getName() + "' which has explicit visibility.", cNode);

if (cNode.isSyntheticPublic()) revertVisibility(cNode);
else throw new RuntimeException("Can't use " + MY_TYPE_NAME + " for class '" + cNode.getName() + "' which has explicit visibility.");