This code can be used to convert Microsoft Project File to XPS. For further details, refer to the article https://kb.aspose.com/tasks/java/how-to-convert-microsoft-project-file-to-xps-in-java/

Convert Microsoft Project File To XPS In Java.java

import com.aspose.barcode.License;
import com.aspose.tasks.Project;
import com.aspose.tasks.SaveFileFormat;

public class ConvertMicrosoftProjectFileToXPSInJava {

	public static void main(String[] args) throws Exception{ // main function for ConvertMicrosoftProjectFileToXPSInJava class
		// Set Aspose.Tasks license to remove trial version watermark in the output XPS file converted from MPP
		License tasksLicense = new License();
		tasksLicense.setLicense("Aspose.Tasks.lic");

		// Load the input MPP file to be converted to XPS
		Project sourceMPPFile = new Project("InputMPPFile.mpp");

		// Save the output XPS file using SaveFileFormat enumerator
		sourceMPPFile.save("OutputXPSFile.xps", SaveFileFormat.XPS);
	}
}