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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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UnnecessaryModifier

UnnecessaryModifier

Fields in interfaces and annotations are automatically public static final, and methods are public abstract. Classes, interfaces or annotations nested in an interface or annotation are automatically public static (all nested interfaces and annotations are automatically static). Nested enums are automatically static. For historical reasons, modifiers which are implied by the context are accepted by the compiler, but are superfluous.
This rule is defined by the following Java class: net.sourceforge.pmd.lang.java.rule.unnecessary.UnnecessaryModifierRule
Example(s):


 
 public @interface Annotation {
  public abstract void bar(); 		// both abstract and public are ignored by the compiler
  public static final int X = 0; 	// public, static, and final all ignored
  public static class Bar {} 		// public, static ignored
  public static interface Baz {} 	// ditto
}
public interface Foo {
  public abstract void bar(); 		// both abstract and public are ignored by the compiler
  public static final int X = 0; 	// public, static, and final all ignored
  public static class Bar {} 		// public, static ignored
  public static interface Baz {} 	// ditto
}
public class Bar {
  public static interface Baz {} // static ignored
  public static enum FoorBar { // static ignored
    FOO;
  }
}