Program: 175180
Project: 175180
Buggy source:
@Override public boolean execute(String[] args){
  if (args.length >= 1) {
    if (args[0].equalsIgnoreCase("String_Node_Str")) {
      FileWriter fw=null;
      BufferedWriter bw=null;
      try {
        GeoImageReader reader=SumoPlatform.getApplication().getCurrentImageReader();
        File f=new File(reader.getFilesList()[0]);
        fw=new FileWriter(f.getParent() + "String_Node_Str");
        bw=new BufferedWriter(fw);
        MaskVectorLayer mask=LayerManager.getIstanceManager().getChildMaskLayer(LayerManager.getIstanceManager().getCurrentImageLayer());
        List<Geometry> geoms=mask.getGeometries();
        for (int i=0; i < geoms.size(); i++) {
          Geometry g=geoms.get(i);
          if (!g.isValid()) {
            System.out.println("String_Node_Str");
            fw.write(g.toText() + '\n');
            System.out.println("String_Node_Str" + g.isValid());
          }
        }
      }
 catch (      Exception e) {
        e.printStackTrace();
      }
 finally {
        try {
          bw.close();
          fw.close();
        }
 catch (        Exception e) {
        }
      }
    }
 else {
      Integer bufferSize=Integer.parseInt(args[0]);
      MaskVectorLayer mask=LayerManager.getIstanceManager().getChildMaskLayer(LayerManager.getIstanceManager().getCurrentImageLayer());
      final IMask[] bufferedMask=new IMask[1];
      bufferedMask[0]=FactoryLayer.createMaskLayer("String_Node_Str" + bufferSize,mask.getType(),bufferSize,((MaskVectorLayer)mask).getGeometriclayer());
      LayerManager.getIstanceManager().addLayer(bufferedMask[0]);
    }
  }
  return true;
}

Fixed version (ground truth):
@Override public boolean execute(String[] args){
  if (args.length >= 1) {
    final GeoImageReader reader=SumoPlatform.getApplication().getCurrentImageReader();
    if (args[0].equalsIgnoreCase("String_Node_Str")) {
      FileWriter fw=null;
      BufferedWriter bw=null;
      try {
        File f=new File(reader.getFilesList()[0]);
        fw=new FileWriter(f.getParent() + "String_Node_Str");
        bw=new BufferedWriter(fw);
        MaskVectorLayer mask=LayerManager.getIstanceManager().getChildMaskLayer(LayerManager.getIstanceManager().getCurrentImageLayer());
        List<Geometry> geoms=mask.getGeometries();
        for (int i=0; i < geoms.size(); i++) {
          Geometry g=geoms.get(i);
          if (!g.isValid()) {
            System.out.println("String_Node_Str");
            Geometry geo=reader.getGeoTransform().transformGeometryGeoFromPixel(g);
            fw.write(g.toText() + '\n');
            fw.write('\n');
          }
        }
      }
 catch (      Exception e) {
        e.printStackTrace();
      }
 finally {
        try {
          bw.close();
          fw.close();
        }
 catch (        Exception e) {
        }
      }
    }
    if (args[0].equalsIgnoreCase("String_Node_Str")) {
      String fname="String_Node_Str";
      GeometricLayer shpLayer=null;
      try {
        shpLayer=SimpleShapefile.createIntersectedLayer(new File(fname),((SarImageReader)reader).getBbox(100),reader.getGeoTransform());
        final List<Geometry> geoms=shpLayer.getGeometries();
        Thread check=new Thread(){
          public void run(){
            try {
              for (int i=0; i < geoms.size(); i++) {
                Geometry g=reader.getGeoTransform().transformGeometryPixelFromGeo(geoms.get(i));
                if (!g.isValid()) {
                  System.out.println("String_Node_Str");
                  Geometry simplify=TopologyPreservingSimplifier.simplify(geoms.get(i),0.003);
                  simplify=reader.getGeoTransform().transformGeometryPixelFromGeo(geoms.get(i));
                  System.out.println("String_Node_Str" + simplify.isValid());
                  if (!simplify.isValid()) {
                    simplify=TopologyPreservingSimplifier.simplify(geoms.get(i),0.005);
                    simplify=reader.getGeoTransform().transformGeometryPixelFromGeo(geoms.get(i));
                    System.out.println("String_Node_Str" + simplify.isValid());
                  }
                }
              }
            }
 catch (            Exception e) {
              e.printStackTrace();
            }
          }
        }
;
        check.start();
      }
 catch (      Exception e) {
        e.printStackTrace();
      }
    }
 else {
      Integer bufferSize=Integer.parseInt(args[0]);
      MaskVectorLayer mask=LayerManager.getIstanceManager().getChildMaskLayer(LayerManager.getIstanceManager().getCurrentImageLayer());
      final IMask[] bufferedMask=new IMask[1];
      bufferedMask[0]=FactoryLayer.createMaskLayer("String_Node_Str" + bufferSize,mask.getType(),bufferSize,((MaskVectorLayer)mask).getGeometriclayer());
      LayerManager.getIstanceManager().addLayer(bufferedMask[0]);
    }
  }
  return true;
}