if (d instanceof ResolvedDependencyResult) {
                    ResolvedDependencyResult resolved = (ResolvedDependencyResult) d;
                    ResolvedComponentResult selected = resolved.getSelected();
                    if (seen.add(selected)) {
                        pending.push(selected);
                    }
                }
            }
        }

        return null;
    }

     * and added to the graph.
     * On resolve failure, the failure is recorded and no `ComponentState` is selected.
     */
    private static void performSelection(ResolveState resolveState, ModuleResolveState module) {
        ComponentState currentSelection = module.getSelected();

        try {

                if (details.reason != null) {
                    conflictResolution = conflictResolution.withDescription(details.reason);
                }
                details.getSelected().addCause(conflictResolution);
                return;
            }
        }
    }

    @Override
    public boolean hasSeenCapability(Capability capability) {

        Compiler<ScalaJavaJointCompileSpec> compiler = getCompiler(spec);
        if (isNonIncrementalCompilation()) {
            compiler = new CleaningJavaCompiler<>(compiler, getOutputs(), getDeleter());
        }
        compiler.execute(spec);
    }

    /**
     * The toolchain {@link JavaLauncher} to use for executing the Scala compiler.
     *
     * @return the java launcher property

    }

    @TaskAction
    protected void generate() {
        checkGroovyClasspathNonEmpty(getGroovyClasspath().getFiles());
        File destinationDir = getDestinationDir();
        try {
            getDeleter().ensureEmptyDirectory(destinationDir);
        } catch (IOException ex) {
            throw new UncheckedIOException(ex);
        }
        getAntGroovydoc().execute(

        this.javadocTool.finalizeValueOnRead();
    }

    @TaskAction
    protected void generate() {
        File destinationDir = getDestinationDir();
        try {
            getDeleter().ensureEmptyDirectory(destinationDir);
        } catch (IOException ex) {
            throw new UncheckedIOException(ex);
        }

                componentSelectorSerializer.write(encoder, dependencyResult.getRequested());
                writeComponent(encoder, dependencyResult.getSelected(), components);
            } else {
                DefaultUnresolvedDependencyResult dependencyResult = (DefaultUnresolvedDependencyResult) dependency;

            Set<ModuleResolveState> modules = platformState.getParticipatingModules();
            for (ModuleResolveState module : modules) {
                ComponentState selected = module.getSelected();
                if (selected != null) {
                    String componentVersion = selected.getId().getVersion();
                    for (String target : candidateVersions) {

        resolver.select(details);
        if (details.hasFailure()) {
            throw UncheckedException.throwAsUncheckedException(details.getFailure());
        }
        ComponentResolutionState selected = details.getSelected();
        ConflictResolutionResult result = new DefaultConflictResolutionResult(conflict.participants, selected);
        resolutionAction.execute(result);
        if (selected != null) {

        for (DependencyResult d : start.getDependencies()) {
            dependencyAction.execute(d);
            if (d instanceof ResolvedDependencyResult) {
                eachElement(((ResolvedDependencyResult) d).getSelected(), moduleAction, dependencyAction, visited);
            }
        }
    }