Preview features enabled at an invalid source release level 23, preview can be enabled only at source level 24

[Fabccc]

When enabling preview feature in the pom.xml within the maven-compiler-plugin, i'm getting a "Preview features enabled at an invalid source release level 23, preview can be enabled only at source level 24", but I can't upgrade maven, the 3.9.10 is not released yet so it does not support Java 24.
VSCode stop showing syntax errors, and I can't rename classes, nor variable.

<artifactId>maven-compiler-plugin</artifactId>
<version>${compiler-plugin.version}</version>
<configuration>
  <compilerArgs>
    <arg>--enable-preview</arg>
    <arg>-Xlint:preview</arg>
  </compilerArgs>
</configuration>

[rgrunber]

Preview features are only supported for the latest Java version (in vscode-java), which as of the latest vscode-java release, is 24. You don't need to use just one Java version for everything though. You can use a setting like

{
    "java.configuration.runtimes": [
        {
            "name": "JavaSE-24",
            "path": "/path/to/java24-home/"
        },
        {
            "name": "JavaSE-23",
            "path": "/path/to/java23-home/"
        }
    ]
}

so that vscode-java will know which Java version to use for your project(s) while maintaing Java 23 (or even 21, 17) in JAVA_HOME so Maven won't have any issues.

[Fabccc]

Got it thanks !
I had preview enabled on my project with Java 23, to use the Stream Gatherers.
It was annoying at the moment to get an automatic upgrade from vscode and my syntax errors highlighting was just gone.

I'll wait for the Maven 3.9.10 to be released so I can use this brilliant functionality without enabling preview.