private List<TypeSymbol> resolveInterfaces( final JavacNode annotationNode, final Class<? extends java.lang.annotation.Annotation> annotationType, final List<Object> listenerInterfaces) { List<TypeSymbol> resolvedInterfaces = new ArrayList<TypeSymbol>(); for (Object listenerInterface : listenerInterfaces) { if (listenerInterface instanceof JCFieldAccess) { JCFieldAccess interfaze = (JCFieldAccess) listenerInterface; if ("class".equals(As.string(interfaze.name))) { Type interfaceType = CLASS.resolveMember(annotationNode, interfaze.selected); if (interfaceType == null) continue; if (interfaceType.isInterface()) { TypeSymbol interfaceSymbol = interfaceType.asElement(); if (interfaceSymbol != null) resolvedInterfaces.add(interfaceSymbol); } else { annotationNode.addWarning( String.format( "@%s works only with interfaces. %s was skipped", annotationType.getName(), listenerInterface)); } } } } return resolvedInterfaces; }