Program: 52142
Project: 52142
Buggy source:
private void addBTEItems(Context c,Collection[] mycollections,String sourceDir,String mapFile,boolean template,String inputType) throws Exception {
  TransformationEngine te=new DSpace().getSingletonService(TransformationEngine.class);
  DataLoaderService dls=new DSpace().getSingletonService(DataLoaderService.class);
  DataLoader dataLoader=dls.getDataLoaders().get(inputType);
  Map<String,String> outputMap=dls.getOutputMap();
  if (dataLoader == null) {
    System.out.println("String_Node_Str");
    return;
  }
  if (outputMap == null) {
    System.out.println("String_Node_Str");
    return;
  }
  if (dataLoader instanceof FileDataLoader) {
    FileDataLoader fdl=(FileDataLoader)dataLoader;
    if (!"String_Node_Str".equals(sourceDir)) {
      System.out.println("String_Node_Str");
      fdl.setFilename(sourceDir);
    }
  }
  if (dataLoader instanceof OAIPMHDataLoader) {
    OAIPMHDataLoader fdl=(OAIPMHDataLoader)dataLoader;
    if (!"String_Node_Str".equals(sourceDir)) {
      System.out.println("String_Node_Str");
      fdl.setServerAddress(sourceDir);
    }
  }
  if (dataLoader != null) {
    System.out.println("String_Node_Str" + dataLoader.toString() + "String_Node_Str");
    te.setDataLoader(dataLoader);
    DSpaceOutputGenerator outputGenerator=new DSpaceOutputGenerator(outputMap);
    outputGenerator.setOutputDirectory("String_Node_Str");
    te.setOutputGenerator(outputGenerator);
    try {
      TransformationResult res=te.transform(new TransformationSpec());
      List<String> output=res.getOutput();
      outputGenerator.writeOutput(output);
    }
 catch (    Exception e) {
      System.err.println("String_Node_Str");
      e.printStackTrace();
    }
    ItemImport myloader=new ItemImport();
    myloader.addItems(c,mycollections,"String_Node_Str",mapFile,template);
    deleteDirectory(new File("String_Node_Str"));
  }
}

Fixed version (ground truth):
private void addBTEItems(Context c,Collection[] mycollections,String sourceDir,String mapFile,boolean template,String inputType) throws Exception {
  TransformationEngine te=new DSpace().getSingletonService(TransformationEngine.class);
  DataLoaderService dls=new DSpace().getSingletonService(DataLoaderService.class);
  DataLoader dataLoader=dls.getDataLoaders().get(inputType);
  Map<String,String> outputMap=dls.getOutputMap();
  if (dataLoader == null) {
    System.out.println("String_Node_Str");
    return;
  }
  if (outputMap == null) {
    System.out.println("String_Node_Str");
    return;
  }
  if (dataLoader instanceof FileDataLoader) {
    FileDataLoader fdl=(FileDataLoader)dataLoader;
    if (!StringUtils.isBlank(sourceDir)) {
      System.out.println("String_Node_Str");
      fdl.setFilename(sourceDir);
    }
  }
 else   if (dataLoader instanceof OAIPMHDataLoader) {
    OAIPMHDataLoader fdl=(OAIPMHDataLoader)dataLoader;
    System.out.println(sourceDir);
    if (!StringUtils.isBlank(sourceDir)) {
      System.out.println("String_Node_Str");
      fdl.setServerAddress(sourceDir);
    }
  }
  if (dataLoader != null) {
    System.out.println("String_Node_Str" + dataLoader.toString() + "String_Node_Str");
    te.setDataLoader(dataLoader);
    DSpaceOutputGenerator outputGenerator=new DSpaceOutputGenerator(outputMap);
    outputGenerator.setOutputDirectory("String_Node_Str");
    te.setOutputGenerator(outputGenerator);
    try {
      TransformationResult res=te.transform(new TransformationSpec());
      List<String> output=res.getOutput();
      outputGenerator.writeOutput(output);
    }
 catch (    Exception e) {
      System.err.println("String_Node_Str");
      e.printStackTrace();
    }
    ItemImport myloader=new ItemImport();
    myloader.addItems(c,mycollections,"String_Node_Str",mapFile,template);
    deleteDirectory(new File("String_Node_Str"));
  }
}