How to call getClass() from a static method in Java?

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The Answer

Just use TheClassName.class instead of getClass().

Declaring Loggers

Since this gets so much attention for a specific usecase–to provide an easy way to insert log declarations–I thought I’d add my thoughts on that. Log frameworks often expect the log to be constrained to a certain context, say a fully-qualified class name. So they are not copy-pastable without modification. Suggestions for paste-safe log declarations are provided in other answers, but they have downsides such as inflating bytecode or adding runtime introspection. I don’t recommend these. Copy-paste is an editor concern, so an editor solution is most appropriate.

In IntelliJ, I recommend adding a Live Template:

  • Use “log” as the abbreviation
  • Use private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger($CLASS$.class); as the template text.
  • Click Edit Variables and add CLASS using the expression className()
  • Check the boxes to reformat and shorten FQ names.
  • Change the context to Java: declaration.

Now if you type log<tab> it’ll automatically expand to 

private static final Logger logger = LoggerFactory.getLogger(ClassName.class);

And automatically reformat and optimize the imports for you.

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