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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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ImmutableField

ImmutableField

Identifies private fields whose values never change once they are initialized either in the declaration of the field or by a constructor. This helps in converting existing classes to becoming immutable ones.
This rule is defined by the following Java class: net.sourceforge.pmd.lang.java.rule.design.ImmutableFieldRule
Example(s):


  
public class Foo {
  private int x; // could be final
  public Foo() {
      x = 7;
  }
  public void foo() {
     int a = x + 2;
  }
}