void (Map<String, String> params, TemplateResource template) { PsiMethod targetMethod = getMethodPrototype(Collections.emptyList(), Collections.emptyMap(), template); if (targetMethod == null) return; PsiMethod existingMethod = clazz.findMethodBySignature(targetMethod, false); // find the existing method if (existingMethod != null && existingMethod.getDocComment() != null) { PsiDocComment doc = existingMethod.getDocComment(); if (doc != null) { params.put("existingJavaDoc", doc.getText()); } } }