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Sanity4J was created to simplify running multiple static code analysis tools on the Java projects. It provides a single entry point to run all the selected tools and produce a consolidated report, which presents all findings in an easily accessible manner.

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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
}