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import java.util.zip.*;
import java.util.*;
import java.io.*;

public class ZipFileUtil
{
    public static void unzipFileIntoDirectory(final ZipFile zipFile, final File jiniHomeParentDir) {
        final Enumeration files = zipFile.entries();
        File f = null;
        FileOutputStream fos = null;
        while (files.hasMoreElements()) {
            try {
                final ZipEntry entry = files.nextElement();
                final InputStream eis = zipFile.getInputStream(entry);
                final byte[] buffer = new byte[1024];
                int bytesRead = 0;
                f = new File(String.valueOf(jiniHomeParentDir.getAbsolutePath()) + File.separator + entry.getName());
                if (entry.isDirectory()) {
                    f.mkdirs();
                }
                f.getParentFile().mkdirs();
                f.createNewFile();
                fos = new FileOutputStream(f);
                while ((bytesRead = eis.read(buffer)) != -1) {
                    fos.write(buffer, 0, bytesRead);
                }
            }
            catch (IOException e) {
                e.printStackTrace();
            }
            finally {
                if (fos != null) {
                    try {
                        fos.close();
                    }
                    catch (IOException ex) {}
                }
            }
            if (fos != null) {
                try {
                    fos.close();
                }
                catch (IOException ex2) {}
            }
        }
    }
}