Name: apR10229 Date: 05/12/2003



The API method java.nio.channels.FileChannel.read(ByteBuffer,long)
does not throw IllegalArgumentException "If the position is negative",
as Java API documentation says.

Run the following example to reproduce this bug:

-------------------- test.java ----------------------
import java.io.*;
import java.nio.*;
import java.nio.channels.*;
public class test {
    public static void main(String[] args) {
        FileChannel fch = null;
        try {
            FileOutputStream fos = new FileOutputStream("testFile.tmp");
            fos.write(new byte[128]);
            fos.close();
            fch = (new FileInputStream("testFile.tmp")).getChannel();
        } catch (IOException e) {
            e.printStackTrace();
        }
        try {
            fch.read(ByteBuffer.allocate(256),-1L);
        } catch(IllegalArgumentException e) {
            System.out.println("PASSED");
        } catch(IOException e) {
            System.out.println("FAILED: Unexpected "+e);
            System.exit(-1);
        }
        System.out.println("FAILED");
    }
}
------------------- example output ------------------
<pav@libra(pts/5).290> uname -a
Linux libra 2.4.18 #10 Fri Jun 28 18:21:54 MSD 2002 i686 unknown
<pav@libra(pts/5).291> java -version
java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b04)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b04, mixed mode)
<pav@libra(pts/5).292> javac -d . test.java
<pav@libra(pts/5).293> java -cp . test
FAILED
<pav@libra(pts/5).294>

<pav@archer(pts/39).257> uname -a
SunOS archer 5.8 Generic_108528-20 sun4u sparc SUNW,Ultra-4
<pav@archer(pts/39).258> java -version
java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b04)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b04, mixed mode)
<pav@archer(pts/39).259> javac -d . test.java
<pav@archer(pts/39).260> java -cp . test
FAILED
<pav@archer(pts/39).261>

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