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InefficientEmptyStringCheck


InefficientEmptyStringCheck
String.trim().length() is an inefficient way to check if a String is really empty, as it
creates a new String object just to check its size. Consider creating a static function that
loops through a string, checking Character.isWhitespace() on each character and returning
false if a non-whitespace character is found.
    
		
		
		    
		    
    		    
    		    
    		    

    		    This rule is defined by the following Java class:
    		    net.sourceforge.pmd.rules.strings.InefficientEmptyStringCheck
    		    
		    
	    
	    
        
        
        Example:
            
                    

public class Foo {
    void bar(String string) {
        if (string != null && string.trim().size() > 0) {
		    doSomething();
        }
    }
}