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design LoggerIsNotStaticFinal (PMD)

The Logger variable declaration does not contain the static and final modifiers

In most cases, the Logger can be declared static and final.

 
class Foo{
    Logger log = Logger.getLogger(Foo.class.getName());
    // It is much better to declare the logger as follows 
    // static final Logger log = Logger.getLogger(Foo.class.getName());
}

     

Additional info can be found at this http://pmd.sourceforge.net/rules/logging-java.html#LoggerIsNotStaticFinal site.