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public InputStream getCompressed(InputStream is) throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(bos);
zos.putNextEntry(new ZipEntry(""));
int count;
byte data[] = new byte[2048];
BufferedInputStream entryStream = new BufferedInputStream(is, 2048);
while ((count = entryStream.read(data, 0, 2048)) != -1) {
zos.write( data, 0, count );
entryStream.close();
zos.closeEntry();
zos.close();
return new ByteArrayInputStream(bos.toByteArray());
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