UnsupportedClassVersionError exception: SQLServerDriver

[PSchmitz]

Hi,

I'm trying to run jobs using Talend Studio 7.3.1 R2021-06 and they disconnect with this error:

Exception in thread "main" java.lang.UnsupportedClassVersionError: com/microsoft/sqlserver/jdbc/SQLServerDriver has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

The module tab shows that the Maven URI for the installed mssql-jdbc.jar is mvn:org.talend.libraries/mssql-jdbc/6.0.0/jar (mvn:com.microsoft.sqlserver/mssql-jdbc/10.2.0/jar) . I have both OpenJDK 8 and 11 installed and have tried running Studio under both with no luck. Any suggestions on how to resolve this or dig further?

[Anonymous · Accepted solution]

Hello,

The problem is that the mssql-jdbc jar is not compatible with your jdk.

could you please try the below workaround:

1. delete the old mssql-jdbc folder under {studio home}\configuration\.m2\repository\com\microsoft\sqlserver\mssql-jdbc
2. import the attach mssql-jdbc.jar via the studio windows->show_view->Modules
3. try to run the job again.

[PSchmitz]

Thanks, that appears to have resolved the problem.