topic Re: UnsupportedClassVersionError exception: SQLServerDriver in Installing and Upgrading

UnsupportedClassVersionError exception: SQLServerDriver

PSchmitz — Fri, 15 Nov 2024 22:45:49 GMT

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?

Re: UnsupportedClassVersionError exception: SQLServerDriver

Anonymous — Thu, 07 Jul 2022 01:01:57 GMT

Hello,

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

could you please try the below workaround:

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

Re: UnsupportedClassVersionError exception: SQLServerDriver

PSchmitz — Thu, 07 Jul 2022 17:40:32 GMT

Thanks, that appears to have resolved the problem.