resources.report.rules.pmd.FinalFieldCouldBeStatic.html Maven / Gradle / Ivy

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FinalFieldCouldBeStatic

FinalFieldCouldBeStatic

If a final field is assigned to a compile-time constant, it could be made static, thus saving overhead in each object at runtime.


                    
//FieldDeclaration
 [@Final='true' and @Static='false']
   /VariableDeclarator/VariableInitializer/Expression
    /PrimaryExpression[not(PrimarySuffix)]/PrimaryPrefix/Literal
                    

Example(s):


  
public class Foo {
  public final int BAR = 42; // this could be static and save some space
}