Program: 62424
Project: 62424
Buggy source:
@Override public void actionPerformed(final ActionEvent event){
  final String[] compatibleProductNames=getCompatibleProducts(product);
  if (compatibleProductNames.length == 0) {
    Dialogs.showError("String_Node_Str");
    return;
  }
  final StringSelectorDialog dlg=new StringSelectorDialog("String_Node_Str",compatibleProductNames);
  dlg.show();
  if (dlg.IsOK()) {
    try {
      final MetadataElement origAbsRoot=AbstractMetadata.getAbstractedMetadata(product);
      final int isPolsar=origAbsRoot.getAttributeInt(AbstractMetadata.polsarData,0);
      final int isCalibrated=origAbsRoot.getAttributeInt(AbstractMetadata.abs_calibration_flag,0);
      final String srcProductName=dlg.getSelectedItem();
      final Product[] products=SnapApp.getDefault().getProductManager().getProducts();
      Product srcProduct=null;
      for (      Product prod : products) {
        if (prod.getDisplayName().equals(srcProductName)) {
          srcProduct=prod;
          break;
        }
      }
      final MetadataElement srcAbsRoot=AbstractMetadata.getAbstractedMetadata(srcProduct);
      final File tmpMetadataFile=new File(SystemUtils.getCacheDir(),srcProduct.getName() + "String_Node_Str");
      AbstractMetadataIO.Save(srcProduct,srcAbsRoot,tmpMetadataFile);
      clearProductMetadata(product);
      SnapApp.getDefault().getProductManager().removeProduct(product);
      final MetadataElement destAbsRoot=AbstractMetadata.getAbstractedMetadata(product);
      AbstractMetadataIO.Load(product,destAbsRoot,tmpMetadataFile);
      SnapApp.getDefault().getProductManager().addProduct(product);
      ReplaceMetadataOp.resetPolarizations(AbstractMetadata.getAbstractedMetadata(product),isPolsar,isCalibrated);
      tmpMetadataFile.delete();
    }
 catch (    Exception e) {
      Dialogs.showError("String_Node_Str" + e.getMessage());
    }
  }
}

Fixed version (ground truth):
@Override public void actionPerformed(final ActionEvent event){
  final String[] compatibleProductNames=getCompatibleProducts(product);
  if (compatibleProductNames.length == 0) {
    Dialogs.showError("String_Node_Str");
    return;
  }
  final StringSelectorDialog dlg=new StringSelectorDialog("String_Node_Str",compatibleProductNames);
  dlg.show();
  if (dlg.IsOK()) {
    try {
      final MetadataElement origAbsRoot=AbstractMetadata.getAbstractedMetadata(product);
      final int isPolsar=origAbsRoot.getAttributeInt(AbstractMetadata.polsarData,0);
      final int isCalibrated=origAbsRoot.getAttributeInt(AbstractMetadata.abs_calibration_flag,0);
      final String srcProductName=dlg.getSelectedItem();
      final Product[] products=SnapApp.getDefault().getProductManager().getProducts();
      Product srcProduct=null;
      for (      Product prod : products) {
        if (prod.getDisplayName().equals(srcProductName)) {
          srcProduct=prod;
          break;
        }
      }
      final MetadataElement srcAbsRoot=AbstractMetadata.getAbstractedMetadata(srcProduct);
      final File tmpMetadataFile=new File(SystemUtils.getCacheDir(),srcProduct.getName() + "String_Node_Str");
      AbstractMetadataIO.Save(srcProduct,srcAbsRoot,tmpMetadataFile);
      String origName=product.getName();
      clearProductMetadata(product);
      final MetadataElement destAbsRoot=AbstractMetadata.getAbstractedMetadata(product);
      AbstractMetadataIO.Load(product,destAbsRoot,tmpMetadataFile);
      product.setName(origName);
      ReplaceMetadataOp.resetPolarizations(AbstractMetadata.getAbstractedMetadata(product),isPolsar,isCalibrated);
      tmpMetadataFile.delete();
    }
 catch (    Exception e) {
      Dialogs.showError("String_Node_Str" + e.getMessage());
    }
  }
}