import org.gradle.api.tasks.WorkResult;

public class RecompilationNotNecessary implements WorkResult, IncrementalCompilationResult {

    private final PreviousCompilationData previousCompilationData;
    private final RecompilationSpec recompilationSpec;

    public RecompilationNotNecessary(PreviousCompilationData previousCompilationData, RecompilationSpec recompilationSpec) {

                LOG.info("None of the classes needs to be compiled! Analysis took {}. ", clock.getElapsed());
                return new RecompilationNotNecessary(previousCompilationData, recompilationSpec);
            }
            try {
                WorkResult result = cleaningCompiler.getCompiler().execute(spec);

        this.previousCompilationAccess = previousCompilationAccess;
    }

    @Override
    public WorkResult execute(T spec) {
        WorkResult result = delegate.execute(spec);
        if (result instanceof RecompilationNotNecessary) {
            return result;
        }
        storeResult(spec, result);
        return result;
    }

    private void storeResult(JavaCompileSpec spec, WorkResult result) {

Class <org.gradle.api.internal.tasks.compile.incremental.RecompilationNotNecessary> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (RecompilationNotNecessary.java:0)