when i decompress byte[] as the following,the Exception is raise.

my jdk is sun 1.4.2.


public byte[] decompress(byte[] outputData) throws IOException {

&nbsp&nbspByteArrayOutputStream output = new ByteArrayOutputStream(1024);

&nbsp&nbspByteArrayInputStream input = new ByteArrayInputStream(outputData);

&nbsp&nbspGZIPInputStream gzinpt = new GZIPInputStream(input);

&nbsp&nbspbyte[] buf = new byte[BUFFER_SIZE];

&nbsp&nbspbyte[] result = null;

&nbsp&nbspint number = 0;

&nbsp&nbsptry {

&nbsp&nbsp&nbspwhile ((number = gzinpt.read(buf)) != -1) {

&nbsp&nbsp&nbsp&nbspoutput.write(buf, 0, number);

&nbsp&nbsp&nbsp&nbspif (gzinpt.available()==0)

&nbsp&nbsp&nbsp&nbsp&nbspbreak;

&nbsp&nbsp&nbsp&nbsp}

&nbsp&nbsp&nbsp} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

&nbsp&nbsp&nbsp} finally{

&nbsp&nbspoutput.flush();

&nbsp&nbspgzinpt.close();

&nbsp&nbspinput.close();

&nbsp&nbspoutput.close();

&nbsp&nbspresult = output.toByteArray();

&nbsp&nbsp}

&nbspreturn result;

}




Exception is :
java.io.EOFException: Unexpected end of ZLIB input stream
at java.util.zip.InflaterInputStream.fill(InflaterInputStream.java:215)
at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:134)
at java.util.zip.GZIPInputStream.read(GZIPInputStream.java:87)
at java.io.FilterInputStream.read(FilterInputStream.java:90)
at com.iijt.ticket.web.FileService.decompress(FileService.java:177)
at com.iijt.ticket.web.FileService.putFile(FileService.java:59)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
................