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I am trying to unzip a file (retrieved from an FTP server): ZipInputStream zis = new ZipInputStream( new FileInputStream(zipFile)); ZipEntry ze = zis.getNextEntry(); while (ze != null) { String fileName = ze.getName(); File newFile = new File(outputFileName+outputFolder + File.separator + fileName); System.out.println("file unzip : " + newFile.getAbsoluteFile()); FileOutputStream fos = new FileOutputStream(newFile); int len; while ((len = zis.read(buffer)) > 0) { fos.write(buffer, 0, len); } fos.close(); sendFile = newFile; ze = zis.getNextEntry(); } zis.closeEntry(); zis.close(); System.out.println("Done"); I have only one text file in the .zip file. This code works fine on my local windows machine. However, when deployed onto ubuntu server, it throws the following exception.. java.util.zip.ZipException: invalid entry size (expected 193144 but got 193138 bytes) at java.util.zip.ZipInputStream.readEnd(ZipInputStream.java:386) at java.util.zip.ZipInputStream.read(ZipInputStream.java:156) at java.io.FilterInputStream.read(FilterInputStream.java:90) at com.empress.Xsync.updater.ClientConfiguration.unZipFile(ClientConfiguration.java:246) I have manually unzipped it..works fine. Original .txt file size is 193144 bytes.

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