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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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ClassWithOnlyPrivateConstructorsShouldBeFinal


ClassWithOnlyPrivateConstructorsShouldBeFinal
A class with only private constructors should be final, unless the private
constructor is called by a inner class.
        
		
		
		    
    			This rule is defined by the following XPath expression:
    			
    			
    TypeDeclaration[count(../TypeDeclaration) = 1]/ClassOrInterfaceDeclaration
[@Final = 'false']
[count(./ClassOrInterfaceBody/ClassOrInterfaceBodyDeclaration/ConstructorDeclaration[@Private = 'true']) &gt;= 1 ]
[count(./ClassOrInterfaceBody/ClassOrInterfaceBodyDeclaration/ConstructorDeclaration[@Public = 'true'])  = 0 ]
[not(.//ClassOrInterfaceDeclaration)]
             
  
		    
		    
	    
	    
        
        
        Example:
            
                    
public class Foo {  //Should be final
    private Foo() { }
}