Using the Eclipse Checkstyle plugin I see this error:
Name 'logger' must match pattern
'^[A-Z][A-Z0-9]*(_[A-Z0-9]+)*$'
.
I resolved this error by changing:
private static final Logger logger = Logger.getLogger(someClass.class);
to
private static final Logger LOGGER = Logger.getLogger(someClass.class);
Why is this a checkstyle warning?
Because the field is marked final
and static
which implies that it's a constant and should be named with uppercase letters.
From this link, you can see that the module ConstantName
has the format ^[A-Z][A-Z0-9]*(_[A-Z0-9]+)*$
which is exactly the one your Checkstyle plugin has specified.
The documentation recommends using this configuration if you wish to keep logger
as a valid option:
<module name="ConstantName">
<property name="format"
value="^log(ger)?$|^[A-Z][A-Z0-9]*(_[A-Z0-9]+)*$"/>
</module>
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