Implicit platform default charset
Reports method and constructor calls that implicitly use the platform default charset. Such calls can produce different results on systems that use a different default charset and may result in unexpected behaviour.
You can use a quick-fix that specifies the explicit UTF-8 charset if the corresponding overloaded method is available. After the quick-fix is applied:
IntelliJ IDEA 2023.3, Qodana for JVM 2023.3