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You can always use any string as logger name other than class type. It’s definitely ok.
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The reason why many people use class type, I guess:
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Easy to use. You don’t need to worry about logger name duplication in a complex Java EE application. If other people also use your logger name, you may have a log file including no only the output of your class;
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Easy to check the logging class, as the logger name will show in the log file. You can quickly navigate to the specific class;
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When you distribute you class, people may want to redirect the logging from your class to a specific file or somewhere else. In such case, if you use a special logger name, we may need to check the source code or imposssible to do that if souce is unavailable.
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