Program: 52102
Project: 52102
Buggy source:
/** 
 * Given an uploaded file, this method calls the method to instantiate a BTE instance to  transform the input data and batch import them to DSpace
 * @param file The input file to read data from
 * @param collections The collections the created items will be inserted to
 * @param bteInputType The input type of the data (bibtex, csv, etc.)
 * @param context The context
 * @throws Exception
 */
public static void processUploadableImport(File file,Collection[] collections,String bteInputType,Context context) throws Exception {
  final EPerson eperson=context.getCurrentUser();
  final File myFile=file;
  final Collection[] mycollections=collections;
  final String myBteInputType=bteInputType;
  if (file.exists()) {
    Thread go=new Thread(){
      public void run(){
        Context context=null;
        ItemIterator iitems=null;
        try {
          context=new Context();
          context.setIgnoreAuthorization(true);
          File importDir=new File(ConfigurationManager.getProperty("String_Node_Str"));
          if (!importDir.exists()) {
            boolean success=importDir.mkdir();
            if (!success) {
              log.info("String_Node_Str");
              throw new Exception();
            }
          }
          String subDirName=generateRandomFilename(false);
          String workingDir=importDir.getAbsolutePath() + File.separator + subDirName;
          boolean success=(new File(workingDir)).mkdir();
          if (!success) {
            log.info("String_Node_Str");
            throw new Exception();
          }
          String mapfile=workingDir + File.separator + "String_Node_Str";
          ItemImport myloader=new ItemImport();
          myloader.addBTEItems(context,mycollections,myFile.getAbsolutePath(),mapfile,template,myBteInputType,workingDir);
          emailSuccessMessage(context,eperson,mapfile);
          context.setIgnoreAuthorization(false);
        }
 catch (        Exception e1) {
          try {
            emailErrorMessage(eperson,e1.getMessage());
          }
 catch (          Exception e) {
          }
          throw new IllegalStateException(e1);
        }
 finally {
          if (iitems != null) {
            iitems.close();
          }
          if (mapOut != null) {
            mapOut.close();
          }
          try {
            context.complete();
          }
 catch (          SQLException sqle) {
            context.abort();
          }
        }
      }
    }
;
    go.isDaemon();
    go.start();
  }
 else {
    log.error("String_Node_Str");
  }
}

Fixed version (ground truth):
/** 
 * Given an uploaded file, this method calls the method to instantiate a BTE instance to  transform the input data and batch import them to DSpace
 * @param file The input file to read data from
 * @param collections The collections the created items will be inserted to
 * @param bteInputType The input type of the data (bibtex, csv, etc.)
 * @param context The context
 * @throws Exception
 */
public static void processUploadableImport(File file,Collection[] collections,String bteInputType,Context context) throws Exception {
  final EPerson eperson=context.getCurrentUser();
  final File myFile=file;
  final Collection[] mycollections=collections;
  final String myBteInputType=bteInputType;
  if (file.exists()) {
    Thread go=new Thread(){
      public void run(){
        Context context=null;
        ItemIterator iitems=null;
        try {
          context=new Context();
          context.setCurrentUser(eperson);
          context.setIgnoreAuthorization(true);
          File importDir=new File(ConfigurationManager.getProperty("String_Node_Str"));
          if (!importDir.exists()) {
            boolean success=importDir.mkdir();
            if (!success) {
              log.info("String_Node_Str");
              throw new Exception();
            }
          }
          String subDirName=generateRandomFilename(false);
          String workingDir=importDir.getAbsolutePath() + File.separator + subDirName;
          boolean success=(new File(workingDir)).mkdir();
          if (!success) {
            log.info("String_Node_Str");
            throw new Exception();
          }
          String mapfile=workingDir + File.separator + "String_Node_Str";
          ItemImport myloader=new ItemImport();
          myloader.addBTEItems(context,mycollections,myFile.getAbsolutePath(),mapfile,template,myBteInputType,workingDir);
          emailSuccessMessage(context,eperson,mapfile);
          context.setIgnoreAuthorization(false);
        }
 catch (        Exception e1) {
          try {
            emailErrorMessage(eperson,e1.getMessage());
          }
 catch (          Exception e) {
          }
          throw new IllegalStateException(e1);
        }
 finally {
          if (iitems != null) {
            iitems.close();
          }
          if (mapOut != null) {
            mapOut.close();
          }
          try {
            context.complete();
          }
 catch (          SQLException sqle) {
            context.abort();
          }
        }
      }
    }
;
    go.isDaemon();
    go.start();
  }
 else {
    log.error("String_Node_Str");
  }
}