Name: auR10023 Date: 01/16/2001


  
Method java.io.InputStreamReader.skip(int) raises java.lang.Error instead of
IOException when ByteArrayInputStream is empty.
  
In jdk1.3 this method throws IOException in this case.
  
Here is the test demonstrating the bug:
------------------- t.java -------------
import java.io.*;
  
public class t{
    public static void main(String [] args) {
        byte[] bytes = { (byte)128 };
        char[] readChars = new char[10];
 
        ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
        InputStreamReader isr = null;
        try {
            isr = new InputStreamReader(bais, "UTF8");
        } catch(UnsupportedEncodingException e){
            System.out.println("Unexpected exception");
            return;
        }
        try {
            isr.skip(1);
        } catch (IOException ioe) {
            System.out.println("IOException was thrown as expected");
            return;
        }
        System.out.println("read should have thrown IOException");
    }
}

----------- output from the test: --------------------
#> java -version
java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b46)
Java HotSpot(TM) Client VM (build 1.4beta-B45, mixed mode)

#> java t
Exception in thread "main" java.lang.Error
        at java.io.InputStreamReader$CharsetFiller.fill(InputStreamReader.java:353)
        at java.io.InputStreamReader.read(InputStreamReader.java:478)
        at java.io.Reader.skip(Reader.java:148)
        at t.main(t.java:17)

#> java -version
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, interpreted mode)

#> java t
IOException was thrown as expected

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