public ProcessOutputProviderFactory(Instantiator instantiator, ExecSpecFactory execSpecFactory) {
        this.instantiator = instantiator;
        this.execSpecFactory = execSpecFactory;
    }

    public void configureParametersForExec(ProcessOutputValueSource.Parameters parameters, Action<? super ExecSpec> action) {
        configureParameters(parameters, instantiator.newInstance(ProviderCompatibleExecSpec.class, execSpecFactory.newExecSpec()), action);

            throw new UnsupportedOperationException();
        }
        return new DefaultExecOutput(of(ProcessOutputValueSource.class, spec -> processOutputProviderFactory.configureParametersForExec(spec.getParameters(), action)));
    }

    @Override
    public ExecOutput javaexec(Action<? super JavaExecSpec> action) {
        if (processOutputProviderFactory == null) {