The javadoc does not receive most but not all type annotations information from javadoc.

e.g. On the class signature

abstract class MyClass extends @ClassExtA ParameterizedClass<@ClassExtB String>
 implements @ClassExtB CharSequence, @ClassExtA ParameterizedInterface<@ClassExtB String> { }

the @ClassExtA annotation on ParameterizedClass is not propagated from javac to javadoc.