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'SimpleDateFormat' without locale

Reports instantiations of java.util.SimpleDateFormat or java.time.format.DateTimeFormatter that do not specify a java.util.Locale. These calls will use the platform default locale, which depends on the OS settings. This can lead to surprising behaviour when the code is run on a different platform or the OS settings are changed.


new SimpleDateFormat("yyyy"); DateTimeFormatter.ofPattern("d/M/y");

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin:

Java, 241.14841

Last modified: 12 March 2024