Why is it working fine locally and the server getting groovy.util.slurpersupport.Attributes cannot be cast to java.util.Map error?

Question

Why does it work fine locally, and when uploading to the server, the groovy.util.slurpersupport.Attributes cannot be cast to java.util.Map error occurs? How do I fix it?

import groovy.json.JsonSlurper
import groovy.sql.Sql

import java.sql.Connection
import java.sql.DriverManager



class WORK_XML {

    def execute(Connection conn, InputStream P_FILE) {

        Sql sql = new Sql(conn)

        def person = new XmlSlurper().parse(P_FILE)
        
        def ab = person.Doc.@Ver


    }

    static void main(String... args) {
        Class.forName("oracle.jdbc.driver.OracleDriver")
        Connection connection = DriverManager.getConnection("jdbc:oracle:thin:@10.99.22.31:1755/ORC2", "TEST", "TEST")
        connection.setAutoCommit(true)

        try {

            def P_FILE = new File("C:\\test.xml").newInputStream()

            def SSC = new WORK_XML()
            def res = SSC.execute(connection, P_FILE)

        } finally {
            connection.close()
        }
    }

}