MID Server | Checking the Java JRE VersionIssue To see which version of Java JRE is being used by your MID Server: Log in to the MID Server host. Place the following parameter in a suitable place in the <path-to-MID-server>\agent\conf\wrapper-override.conf file. wrapper.java.version.output=true Save the file. Restart the MID Server. The <path-to-MID-server>\agent\wrapper.log file now contains the version, which is displayed after the text "Launching a JVM...".