java.lang.NullPointerException: Cannot invoke method addURL() on null object

Question

Below are the first few lines of my groovy file. When i try to run it from the server, i get the null Pointer Exception: Cannot invoke method addURL() on null object

I am not sure how the code needs to be changed here to fix the above error:

package groovy;

def localFile = new File("/tmp/sqljdbc4.jar");
this.class.classLoader.rootLoader.addURL(localFile.toURI().toURL());

import java.sql.Connection;
import java.sql.DriverManager;
import com.microsoft.sqlserver.jdbc.*;
import groovy.sql.Sql;

Connection ret = null;

try {
SQLServerDataSource ds = new SQLServerDataSource()
......

you can add the same to classpath. – Rao Nov 08 '17 at 01:32 — Rao, Nov 08 '17 at 01:32

score 0 · Answer 1 · answered Nov 08 '17 at 01:35

0

Try using the class name instead of this for example if the class is named Groove use the line Groove.class.classLoader.rootLoader.addURL(localFile.toURI().toURL());

answered Nov 08 '17 at 01:35

Pseudo_boots

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java.lang.NullPointerException: Cannot invoke method addURL() on null object

1 Answers1