Program: 146054
Project: 146054
Buggy source:
/** 
 * DOC hbhong Comment method "unZipFile". same with unZipFile(String zipfile, String unzipdir) method except having a progressMonitor
 * @param zipfile
 * @param unzipdir
 * @param totalProgress
 * @param monitor
 * @throws IOException
 * @throws Exception
 */
public static void unZipFile(String zipfile,String unzipdir,int totalProgress,IProgressMonitor monitor) throws IOException {
  monitor.setTaskName("String_Node_Str");
  File unzipF=new File(unzipdir);
  if (!unzipF.exists()) {
    unzipF.mkdirs();
  }
  ZipFile zfile=null;
  try {
    zfile=new ZipFile(zipfile);
    int total=zfile.size();
    int interval, step;
    if (totalProgress / total > 0) {
      interval=1;
      step=Math.round(totalProgress / total);
    }
 else {
      step=1;
      interval=Math.round(total / totalProgress + 0.5f);
    }
    Enumeration zList=zfile.entries();
    ZipEntry ze=null;
    byte[] buf=new byte[1024];
    int tmp=1;
    while (zList.hasMoreElements()) {
      ze=(ZipEntry)zList.nextElement();
      monitor.subTask(ze.getName());
      if (ze.isDirectory()) {
        File f=new File(unzipdir + ze.getName());
        f.mkdirs();
        continue;
      }
      unzipdir=unzipdir.replace('\\','/');
      if (!unzipdir.endsWith("String_Node_Str")) {
        unzipdir=unzipdir + "String_Node_Str";
      }
      String filename=unzipdir + ze.getName();
      File zeF=new File(filename);
      if (!zeF.getParentFile().exists()) {
        zeF.getParentFile().mkdirs();
      }
      OutputStream os=null;
      InputStream is=null;
      try {
        os=new BufferedOutputStream(new FileOutputStream(zeF));
        is=new BufferedInputStream(zfile.getInputStream(ze));
        int readLen=0;
        while ((readLen=is.read(buf,0,1024)) != -1) {
          os.write(buf,0,readLen);
        }
      }
 catch (      IOException e) {
        Log.error(e.getMessage(),e);
      }
 finally {
        try {
          if (is != null) {
            is.close();
          }
        }
 catch (        Exception e) {
        }
        try {
          if (os != null) {
            os.close();
          }
        }
 catch (        Exception e) {
        }
      }
      if (interval == 1) {
        monitor.worked(step);
      }
 else {
        if (tmp >= interval) {
          monitor.worked(step);
          tmp=1;
        }
 else {
          tmp++;
        }
      }
    }
  }
 catch (  IOException e) {
    Log.error(e.getMessage(),e);
    throw e;
  }
 finally {
    if (zfile != null) {
      try {
        zfile.close();
      }
 catch (      IOException e) {
      }
    }
  }
}

Fixed version (ground truth):
/** 
 * DOC aiming Comment method "unZipFile".
 * @param zipfile
 * @param unzipdir
 * @throws IOException 
 * @throws Exception
 */
public static void unZipFile(String zipfile,String unzipdir) throws IOException {
  File unzipF=new File(unzipdir);
  if (!unzipF.exists()) {
    unzipF.mkdirs();
  }
  ZipFile zfile=null;
  try {
    zfile=new ZipFile(zipfile);
    Enumeration zList=zfile.entries();
    ZipEntry ze=null;
    byte[] buf=new byte[1024];
    while (zList.hasMoreElements()) {
      ze=(ZipEntry)zList.nextElement();
      if (ze.isDirectory()) {
        File f=new File(unzipdir + ze.getName());
        f.mkdirs();
        continue;
      }
      unzipdir=unzipdir.replace('\\','/');
      if (!unzipdir.endsWith("String_Node_Str")) {
        unzipdir=unzipdir + "String_Node_Str";
      }
      String filename=unzipdir + ze.getName();
      File zeF=new File(filename);
      if (!zeF.getParentFile().exists()) {
        zeF.getParentFile().mkdirs();
      }
      OutputStream os=null;
      InputStream is=null;
      try {
        os=new BufferedOutputStream(new FileOutputStream(zeF));
        is=new BufferedInputStream(zfile.getInputStream(ze));
        int readLen=0;
        while ((readLen=is.read(buf,0,1024)) != -1) {
          os.write(buf,0,readLen);
        }
      }
 catch (      IOException e) {
        Log.error(e.getMessage(),e);
      }
 finally {
        try {
          if (is != null) {
            is.close();
          }
        }
 catch (        Exception e) {
        }
        try {
          if (os != null) {
            os.close();
          }
        }
 catch (        Exception e) {
        }
      }
    }
  }
 catch (  IOException e) {
    Log.error(e.getMessage(),e);
    throw e;
  }
 finally {
    if (zfile != null) {
      try {
        zfile.close();
      }
 catch (      IOException e) {
      }
    }
  }
}