Bug 531381

Description Karsten Thoms 2018-02-20 06:25:03 EST

The following code contains several examples for redundant string operations. They should be removable by a cleanup operation. Additionally an "Unnecessary code" warning could be raised and quick fix provided.


public class RedundantStringOperations {
  private static final String FOO = "Foo";
  
  public static void main(String[] args) {
    System.out.println(FOO.toString()); // toString on String is redundant
    System.out.println(FOO.intern());   // intern on a constant is redundant
    
    StringBuilder sb = new StringBuilder(""); // empty string param is superfluous
    sb.append("");                            // statement is a noop
    System.out.print("");                     // statement is a noop
  }
}