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  • I installed Mango on my Windows 10 laptop to start testing. Trying to build an MSSQL data source to database located on my laptop. Seeing the following error:
    INFO 2017-10-11T03:42:34,330 (com.serotonin.m2m2.sql.SqlDataSourceRT.initialize:510) - Error while initializing data source
    at ~[?:1.8.0_131]
    at java.lang.ClassLoader.loadClass( ~[?:1.8.0_131]
    at java.lang.ClassLoader.loadClass( ~[?:1.8.0_131]
    at java.lang.Class.forName0(Native Method) ~[?:1.8.0_131]
    at java.lang.Class.forName( ~[?:1.8.0_131]
    at com.serotonin.m2m2.sql.SqlDataSourceRT.initialize( [sql-ds-3.2.0.jar:?]
    at com.serotonin.m2m2.sql.SqlDataSourceRT.manageConnection( [sql-ds-3.2.0.jar:?]
    at com.serotonin.m2m2.sql.SqlDataSourceRT.doPoll( [sql-ds-3.2.0.jar:?]
    at com.serotonin.m2m2.rt.dataSource.PollingDataSource.doPollNoSync( [mango-3.2.1.jar:?]
    at com.serotonin.m2m2.rt.dataSource.PollingDataSource.scheduleTimeoutImpl( [mango-3.2.1.jar:?]
    at com.serotonin.m2m2.rt.dataSource.PollingDataSource$1.scheduleTimeout( [mango-3.2.1.jar:?]
    at [mango-3.2.1.jar:?]
    at com.serotonin.timer.Task.runTask( [mango-3.2.1.jar:?]
    at [mango-3.2.1.jar:?]
    at com.serotonin.timer.OrderedThreadPoolExecutor$ [mango-3.2.1.jar:?]
    at java.util.concurrent.ThreadPoolExecutor.runWorker( [?:1.8.0_131]
    at java.util.concurrent.ThreadPoolExecutor$ [?:1.8.0_131]
    at [?:1.8.0_131]

    My driver class setting is as follows:

    My connection string is as follows: jdbc:sqlserver://;database=Bisson;integratedSecurity=false;

    I am not sure what I am missing here.

    Please advise.


  • Hi eksantrik,

    The JDBC driver for MSSQL is not bundled with Mango. You can download it here: (has links for 6.0 and 6.2 for Java currently). You want the .tar.gz download, it'll have the driver compiled for Java 8, so copy that jar into your Mango/overrides/lib directory and try again.