SchemaValidatoe.java

import com.helger.schematron.ISchematronResource;
import com.helger.schematron.svrl.SVRLFailedAssertAndReport;
import com.helger.schematron.xslt.SchematronResourceSCH;

import javax.xml.transform.stream.StreamSource;
import java.io.File;
import java.util.List;

public class SchematronValidator {

    public static void validate(File xmlFile, File schematronFile) throws Exception {
        ISchematronResource aResSCH = SchematronResourceSCH.fromFile(schematronFile);
        if (!aResSCH.isValidSchematron())
            throw new IllegalArgumentException("Invalid Schematron!");

        List<SVRLFailedAssertAndReport> aList = aResSCH.applySchematronValidationToSVRL(new StreamSource(xmlFile));
        for (SVRLFailedAssertAndReport aFailedAssert : aList) {
            System.out.println("Failed assert: " + aFailedAssert.getAsResourceError().getErrorText());
        }
    }
}