Java version support

Lightbend guarantees Akka Insights (Cinnamon) support only for Java versions 11 and 17.

Unsupported Java versions

By default, Akka Insights (Cinnamon) will emit a warning and will not attempt to instrument bytecode when loaded under Java versions other than 11 or 17. The error will look like this:

[Cinnamon] !! Java version 1.8 is not officially supported by Telemetry. Telemetry expects one of the following versions: 11, 17

Forcing instrumentation

You can force Akka Insights (Cinnamon) to attempt instrumentation by adding force=true to your Akka Insights Java agent parameters, details of configuring the agent under different build systems can be found in the Setup section.

sbt

You can specify the cinnamonArguments sbt setting to provide force=true to your Akka Insights (Cinnamon) agent:

cinnamonArguments := "force=true"

Maven

Under maven, you can modify the <argument> tag that loads the Akka Insights (Cinnamon) agent:

<argument>-javaagent:${project.build.directory}/dependency/cinnamon-agent.jar=force=true</argument>

Gradle

Under gradle you can modify the jvmArgs attribute that loads the Akka Insights (Cinnamon) agent:

jvmArgs "-javaagent:${configurations.agent.singleFile}=force=true"