Hi, I'm using xstream 1.4.3 and since searching both the documentation and bug tracker didn't yield anything useful I'll just leave this here.
I have come across a problem with the fromXML (InputStream) method, when used in conjunction with the ZipInputStream, reading a single compressed file (entry) from an archive causes the entire stream to close. This behaviour is unexpected since it is not documented and also makes processing multiple xml-files from a single zip-archive require extra work. Now, I have already managed by converting each file to a string before calling toXML (String) which will work as expected, however this should probably be considered a bug or at minimum be documented. Also toXML (Reader) seems to be affected. Expected behaviour should be that the provided stream is not explicitly closed by fromXML, regardless of end-of-stream state. Example: XStream XSTREAM = new XStream(new DomDriver("UTF-16")); ZipInputStream in = new ZipInputStream(new File("xmlfiles.zip")); ZipEntry ze = null; while((ze = in.getNextEntry()) != null) { // here each file in the zip-archive is normally processed by reading from "in". XSTREAM.fromXML(in); // this will cause "in" to be close after processing the first file in the zip-archive. in.closeEntry(); // will throw an exception since "in" is no longer open. } in.close(); // the zip-file is supposed to be closed here, after processing each file inside.