import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.design.*;
import net.sf.jasperreports.engine.xml.*;
import java.io.*;

public class JrxmlRendererTest {
    public static void main(String[] args) throws Exception {
        String path = args.length > 0 ? args[0] : "/tmp/test_render.jrxml";
        File f = new File(path);
        System.out.println("File: " + f.getAbsolutePath() + " exists=" + f.exists() + " len=" + f.length());
        
        // Read content to check XML validity
        try (BufferedReader br = new BufferedReader(new FileReader(f))) {
            String line;
            int lineNum = 0;
            while ((line = br.readLine()) != null && lineNum < 5) {
                System.out.println("  L" + (++lineNum) + ": " + line);
            }
        }
        
        try {
            System.out.println("Step 1: Loading JRXML...");
            JasperDesign design = JRXmlLoader.load(f);
            System.out.println("  OK - name=" + design.getName());
        } catch (JRException e) {
            System.err.println("JR ERROR: " + e.getMessage());
            e.printStackTrace();
        } catch (Exception e) {
            System.err.println("GENERIC ERROR: " + e.getClass().getName() + ": " + e.getMessage());
            e.printStackTrace();
        } catch (Error e) {
            System.err.println("FATAL ERROR: " + e.getClass().getName() + ": " + e.getMessage());
            e.printStackTrace();
        }
    }
}