Name: akR10088 Date: 01/27/2004



JSR-201, "Adding Variable-Arity Methods (Varargs) to the Java Programming Language",
Public Review Draft, reads:

Notes on the Specification Changes
JLS 8: Overriding

Whether a method's arity is fixed or variable does not have any effect on its
signature. Hence it is perfectly legal to override a fixed arity method with a
varaible arity one (all other things being equal) and vice versa.


However, java compiler (build 1.5.0-beta2-b35) reports errors, when a fixed
arity method is overriben with a varaible arity one or vice versa.

Following jck tests fail due to this bug:
lang/CLSS/clss457/clss45701/clss45701.html
lang/CLSS/clss457/clss45702/clss45702.html

--------------------------------- clss45701.java -----------
package javasoft.sqe.tests.lang.clss457.clss45701;
import java.io.PrintStream;

class Supper {
  int mmm(int ... list) {
return list[0];
  }
}
 
public class clss45701 extends Supper {
  int mmm(int[] list) {
return list[1];
  }

  public static int run(String argv[], PrintStream out) {
Supper obj=new clss45701();
return obj.mmm(2/*STATUS_FAILED*/, 0/*STATUS_PASSED*/);
  }

  public static void main(String argv[]) {
     System.exit(run(argv, System.out) + 95/*STATUS_TEMP*/);
  }

}
--------------------------------- clss45702.java -----------
package javasoft.sqe.tests.lang.clss457.clss45702;
import java.io.PrintStream;

class Supper {
  int mmm(int[] list) {
return list[0];
  }
}
 
public class clss45702 extends Supper {
  int mmm(int ... list) {
return list[1];
  }

  public static int run(String argv[], PrintStream out) {
Supper obj=new clss45702();
int[] list={2/*STATUS_FAILED*/, 0/*STATUS_PASSED*/};
return obj.mmm(list);
  }

  public static void main(String argv[]) {
     System.exit(run(argv, System.out) + 95/*STATUS_TEMP*/);
  }

}
-------------------------------------------
executing tests:

novo64% java -version
java version "1.5.0-beta2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta2-b35)
Java HotSpot(TM) Client VM (build 1.5.0-beta2-b35, mixed mode)
novo64% javac -source 1.5 *java
clss45701.java:20: mmm(int[]) in javasoft.sqe.tests.lang.clss457.clss45701.clss45701 cannot override mmm(int[]) in javasoft.sqe.tests.lang.clss457.clss45701.Supper; overriding method is missing '...'
  int mmm(int[] list) {
      ^
clss45702.java:20: mmm(int[]) in javasoft.sqe.tests.lang.clss457.clss45702.clss45702 cannot override mmm(int[]) in javasoft.sqe.tests.lang.clss457.clss45702.Supper; overridden method has no '...'
  int mmm(int ... list) {
      ^
2 errors


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