Unlikely argument type String for containsKey(Object) on a Map<EmailTemplate.EmailTemplatePart,String>

[ritonglue]

In org.example.kickoff.business.email.EmailService in method buildTemplateContent one can read

Arrays.stream(EmailTemplatePart.values())
	.filter(part -> !templateParts.containsKey(part.getKey()))
	.forEach(part -> templateParts.putIfAbsent(part, emailTemplateService.build(templateEmail, part, messageParameters)));

I think this should be
.filter(part -> !templateParts.containsKey(part))