Program: 94372
Project: 94372
Buggy source:
private boolean saveSingleTile(final String output,final String pyramidName,final MrsImage image,String format,final long tileid,final int zoom,int tilesize,ProviderProperties providerProperties){
  try {
    final MrsPyramidMetadata metadata=image.getMetadata();
    final Tile t=TMSUtils.tileid(tileid,zoom);
    MrGeoRaster raster=image.getTile(t.tx,t.ty);
    log.info("String_Node_Str" + t.tx + "String_Node_Str"+ t.ty);
    if (raster != null) {
      String out=makeOutputName(output,pyramidName,format,tileid,zoom,tilesize,true);
      if (colorscale != null || !format.equals("String_Node_Str")) {
        if (colorscale == null) {
          MrsImageDataProvider dp=DataProviderFactory.getMrsImageDataProvider(pyramidName,DataProviderFactory.AccessMode.READ,providerProperties);
          MrsPyramidMetadata meta=dp.getMetadataReader().read();
          String csname=meta.getTag(MrGeoConstants.MRGEO_DEFAULT_COLORSCALE);
          if (csname != null) {
            try {
              colorscale=ColorScaleManager.fromName(csname);
            }
 catch (            ColorScale.ColorScaleException ignored) {
            }
            if (colorscale == null) {
              throw new IOException("String_Node_Str" + csname);
            }
          }
 else {
            colorscale=ColorScale.createDefaultGrayScale();
          }
        }
        raster=colorRaster(image,format,raster);
      }
      Bounds bnds=TMSUtils.tileBounds(t.tx,t.ty,image.getZoomlevel(),metadata.getTilesize());
      GDALJavaUtils.saveRasterTile(raster.toDataset(bnds,metadata.getDefaultValues()),out,t.tx,t.ty,image.getZoomlevel(),metadata.getDefaultValue(0),format);
      System.out.println("String_Node_Str" + out);
      return true;
    }
    log.info("String_Node_Str");
  }
 catch (  IOException e) {
    log.error("String_Node_Str",e);
  }
  return false;
}

Fixed version (ground truth):
private boolean saveSingleTile(final String output,final String pyramidName,final MrsImage image,String format,final long tileid,final int zoom,int tilesize,ProviderProperties providerProperties){
  try {
    final MrsPyramidMetadata metadata=image.getMetadata();
    final Tile t=TMSUtils.tileid(tileid,zoom);
    MrGeoRaster raster=image.getTile(t.tx,t.ty);
    log.info("String_Node_Str" + t.tx + "String_Node_Str"+ t.ty);
    if (raster != null) {
      String out=makeOutputName(output,pyramidName,format,tileid,zoom,tilesize,true);
      if (colorscale != null || !format.equals("String_Node_Str")) {
        if (colorscale == null) {
          MrsImageDataProvider dp=DataProviderFactory.getMrsImageDataProvider(pyramidName,DataProviderFactory.AccessMode.READ,providerProperties);
          MrsPyramidMetadata meta=dp.getMetadataReader().read();
          String csname=meta.getTag(MrGeoConstants.MRGEO_DEFAULT_COLORSCALE);
          if (csname != null) {
            try {
              colorscale=ColorScaleManager.fromName(csname);
            }
 catch (            ColorScale.ColorScaleException ignored) {
            }
            if (colorscale == null) {
              throw new IOException("String_Node_Str" + csname);
            }
          }
 else {
            colorscale=ColorScale.createDefaultGrayScale();
          }
        }
        raster=colorRaster(image,format,raster);
      }
      Bounds bnds=TMSUtils.tileBounds(t.tx,t.ty,image.getZoomlevel(),metadata.getTilesize());
      GDALJavaUtils.saveRasterTile(raster.toDataset(bnds,metadata.getDefaultValues()),out,t.tx,t.ty,image.getZoomlevel(),metadata.getDefaultValue(0),format);
      System.out.println("String_Node_Str" + out);
      return true;
    }
    log.info("String_Node_Str");
  }
 catch (  IOException e) {
    log.error("String_Node_Str",e);
  }
catch (  TileNotFoundException e) {
  }
  return false;
}