val jdkLocationsProvider = providers.environmentVariablesPrefixedBy("JDK_")...

def jdkLocationsProvider = providers.environmentVariablesPrefixedBy("JDK_")...

val jdkLocations = System.getenv().filterKeys {
    it.startsWith("JDK_")

def jdkLocations = System.getenv().findAll {
    key, _ -> key.startsWith("JDK_")

 */
public class IdeaLanguageLevel {

    private String level;

    public IdeaLanguageLevel(Object version) {
        if (version != null && version instanceof String && ((String) version).startsWith("JDK_")) {
            level = (String) version;
            return;
        }
        level = JavaVersion.toVersion(version).name().replaceFirst("VERSION", "JDK");
    }

    public String getLevel() {