Rulesets for SLF4J.
Given argument for LoggerFactory#getLogger(Class) is wrong. You have to provide the Class which you're coding.
1
Logger should be private.
1
Logger should be final.
1
Sometimes using non-static logger is better than using static one. See official FAQ(http://www.slf4j.org/faq.html#declared_static) for detail.
If you want to keep your logger static, please use default logging rule(http://pmd.sourceforge.net/pmd-5.0.0/rules/java/logging-java.html#LoggerIsNotStaticFinal) instead.
3
Number of placeholder({}) should be equal to number of argument.
3