javagwt

GWT gwt-maven-plugin wrong sourcelevel warning in IntelliJ

Using following config in pom

<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>${gwt.version}</version>
<executions>
    <execution>
        <configuration>
            <style>${gwtcompiler.style}</style>
            <optimizationLevel>${gwtcompiler.optimizationLevel}</optimizationLevel>
            <sourceLevel>auto</sourceLevel>
        </configuration>
        <goals>
            <goal>compile</goal>
            <goal>generateAsync</goal>
            <goal>test</goal>
        </goals>
    </execution>
</executions>
<configuration>
    <extraJvmArgs>
        -javaagent:${settings.localRepository}/org/projectlombok/lombok/${lombok.version}/lombok-${lombok.version}.jar=ECJ
        --add-opens java.base/java.lang=ALL-UNNAMED
    </extraJvmArgs>
    <runTarget>index.html</runTarget>
    <draftCompile>false</draftCompile>
    <sourceLevel>auto</sourceLevel>
</configuration>
</plugin>

<sourceLevel>auto</sourceLevel>

following false warning

enter image description here

is generating

Warning comes from generated Project Settings Facets

enter image description here

did even try with 1.11 or 1.8

Using latest GWT

~/Library/Java/JavaVirtualMachines/openjdk-21.0.1/Contents/Home/bin/java

Any assistance or insights you can provide would be highly appreciated. Thank you in advance for taking the time to read. Your expertise is invaluable, and I welcome any suggestions or solutions you may have.

Solution

  • got the answer on :

    rob5n (Rob Newton) If you are using the section to configure the compiler for java 1.8, use <maven.compiler.source>1.8</...> and <maven.compiler.target>1.8</...> . Or for java 11, use <maven.compiler.release>11</...>. AND remove the tags in the section such as <maven.compiler.source>, otherwise these will overwrite your properties.