FIX: java.io.OutputStreamWriter Class Incorrectly Throws Exception (280062)

CAUSE

This problem occurs if previous operations nearly fill up the byte array conversion buffer (with only 1, 2, or 3 bytes left in the buffer) and the first character of a new incoming conversion operation is too large to fit in the buffer's remaining space.

RESOLUTION

To resolve this problem on computers that are running Microsoft Windows 95, Microsoft Windows 98, Microsoft Windows Millennium Edition (Me), Microsoft Windows NT, and Microsoft Windows 2000, download and install the latest build of the Microsoft VM.

MORE INFORMATION

Steps to Reproduce Behavior

Create a new file named Test.java, and paste the following code:

import java.util.*;
import java.io.*;

public class Test
{
	public static void main(String[] args) throws IOException
	{
		ByteArrayOutputStream bos;
		OutputStreamWriter osw;
		byte[] array;
		
		
		bos = new ByteArrayOutputStream();
		osw = new OutputStreamWriter(bos, "UTF8");

		try
		{
			for(int count = 1; count < 3000; ++count)
				osw.write('\u3042'); // Hiragana

			osw.close();
			array = bos.toByteArray();

			System.out.println( "Number of UTF8 bytes written "+ array.length );
		}
		catch( CharConversionException ex)
		{
			System.out.println(ex.getMessage());
		}
	}
}

At a command prompt, type the following command to compile the source file:
jvc Test.java
At a command prompt, type the following command to run the class file:
jview Test.class
Because the CharConversionException exception is incorrectly thrown, you receive the following message:
Output buffer too small

REFERENCES

The latest build of the Microsoft VM is available from the following Microsoft Web site:

http://www.microsoft.com/mscorp/java/

For support information about Visual J++ and the SDK for Java, visit the following Microsoft Web site:

http://www.microsoft.com/java