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// (jEdit options) :folding=explicit:collapseFolds=1:
import java.io.*;
import java.util.*;
import java.util.zip.*;
/**
* <code>GZIPInputStreamMark</code> show that a bug exists in
* GZIPInputStream.mark() and GZIPInputStream.reset().
*
* Supply a gzipped file as input on stdin.
*
* <p>Copyright (C) 2003 by Ian W. Davis. All rights reserved.
* <br>Begun on Tue Feb 18 15:05:39 EST 2003
*/
public class GZIPInputStreamMark //extends ... implements ...
{
public static void main(String[] args) throws IOException
{
final int sz = 10, ntests = 3;
int i, j;
BufferedInputStream buf1 = new BufferedInputStream(System.in);
System.out.println("buf1.markSupported() == "+buf1.markSupported());
for(j = 0; j < ntests; j++)
{
System.out.print("Test "+(j+1)+": first "+sz+" bytes of stream:");
buf1.mark(sz);
for(i = 0; i < sz; i++) System.out.print(" "+buf1.read());
System.out.println();
buf1.reset();
}
System.out.println();
GZIPInputStream buf2 = new GZIPInputStream(buf1);
System.out.println("buf2.markSupported() == "+buf2.markSupported());
for(j = 0; j < ntests; j++)
{
System.out.print("Test "+(j+1)+": first "+sz+" bytes of stream:");
buf2.mark(sz);
for(i = 0; i < sz; i++) System.out.print(" "+buf2.read());
System.out.println();
buf2.reset();
}
System.out.println();
BufferedInputStream buf3 = new BufferedInputStream(buf2);
System.out.println("buf3.markSupported() == "+buf3.markSupported());
for(j = 0; j < ntests; j++)
{
System.out.print("Test "+(j+1)+": first "+sz+" bytes of stream:");
buf3.mark(sz);
for(i = 0; i < sz; i++) System.out.print(" "+buf3.read());
System.out.println();
buf3.reset();
}
System.out.println();
}
}//class
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