public void executeMojo()

in impl/maven-core/src/main/java/org/apache/maven/plugin/DefaultBuildPluginManager.java [97:199]
89 lines of code
11 McCabe index (conditional complexity)

    public void executeMojo(MavenSession session, MojoExecution mojoExecution)
            throws MojoFailureException, MojoExecutionException, PluginConfigurationException, PluginManagerException {
        MavenProject project = session.getCurrentProject();

        MojoDescriptor mojoDescriptor = mojoExecution.getMojoDescriptor();

        Mojo mojo = null;

        ClassRealm pluginRealm;
        try {
            pluginRealm = getPluginRealm(session, mojoDescriptor.getPluginDescriptor());
        } catch (PluginResolutionException e) {
            throw new PluginExecutionException(mojoExecution, project, e);
        }

        ClassLoader oldClassLoader = Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader(pluginRealm);

        MavenSession oldSession = legacySupport.getSession();

        scope.enter();

        try {
            scope.seed(MavenProject.class, project);
            scope.seed(MojoExecution.class, mojoExecution);
            scope.seed(
                    org.apache.maven.api.plugin.Log.class,
                    new DefaultLog(LoggerFactory.getLogger(
                            mojoExecution.getMojoDescriptor().getFullGoalName())));
            InternalMavenSession sessionV4 = InternalMavenSession.from(session.getSession());
            scope.seed(Project.class, sessionV4.getProject(project));
            scope.seed(org.apache.maven.api.MojoExecution.class, new DefaultMojoExecution(sessionV4, mojoExecution));

            if (mojoDescriptor.isV4Api()) {
                org.apache.maven.api.plugin.Mojo mojoV4 = mavenPluginManager.getConfiguredMojo(
                        org.apache.maven.api.plugin.Mojo.class, session, mojoExecution);
                mojo = new MojoWrapper(mojoV4);
            } else {
                mojo = mavenPluginManager.getConfiguredMojo(Mojo.class, session, mojoExecution);
            }

            legacySupport.setSession(session);

            // NOTE: DuplicateArtifactAttachmentException is currently unchecked, so be careful removing this try/catch!
            // This is necessary to avoid creating compatibility problems for existing plugins that use
            // MavenProjectHelper.attachArtifact(..).
            try {
                MojoExecutionEvent mojoExecutionEvent = new MojoExecutionEvent(session, project, mojoExecution, mojo);
                mojoExecutionListener.beforeMojoExecution(mojoExecutionEvent);
                mojo.execute();
                mojoExecutionListener.afterMojoExecutionSuccess(mojoExecutionEvent);
            } catch (ClassCastException | MavenException e) {
                // to be processed in the outer catch block
                throw e;
            } catch (RuntimeException e) {
                throw new PluginExecutionException(mojoExecution, project, e);
            }
        } catch (MavenException e) {
            throw e;
        } catch (PluginContainerException e) {
            mojoExecutionListener.afterExecutionFailure(
                    new MojoExecutionEvent(session, project, mojoExecution, mojo, e));
            throw new PluginExecutionException(mojoExecution, project, e);
        } catch (NoClassDefFoundError e) {
            mojoExecutionListener.afterExecutionFailure(
                    new MojoExecutionEvent(session, project, mojoExecution, mojo, e));
            ByteArrayOutputStream os = new ByteArrayOutputStream(1024);
            PrintStream ps = new PrintStream(os);
            ps.println(
                    "A required class was missing while executing " + mojoDescriptor.getId() + ": " + e.getMessage());
            pluginRealm.display(ps);
            Exception wrapper = new PluginContainerException(mojoDescriptor, pluginRealm, os.toString(), e);
            throw new PluginExecutionException(mojoExecution, project, wrapper);
        } catch (LinkageError e) {
            mojoExecutionListener.afterExecutionFailure(
                    new MojoExecutionEvent(session, project, mojoExecution, mojo, e));
            ByteArrayOutputStream os = new ByteArrayOutputStream(1024);
            PrintStream ps = new PrintStream(os);
            ps.println("An API incompatibility was encountered while executing " + mojoDescriptor.getId() + ": "
                    + e.getClass().getName() + ": " + e.getMessage());
            pluginRealm.display(ps);
            Exception wrapper = new PluginContainerException(mojoDescriptor, pluginRealm, os.toString(), e);
            throw new PluginExecutionException(mojoExecution, project, wrapper);
        } catch (ClassCastException e) {
            mojoExecutionListener.afterExecutionFailure(
                    new MojoExecutionEvent(session, project, mojoExecution, mojo, e));
            ByteArrayOutputStream os = new ByteArrayOutputStream(1024);
            PrintStream ps = new PrintStream(os);
            ps.println("A type incompatibility occurred while executing " + mojoDescriptor.getId() + ": "
                    + e.getMessage());
            pluginRealm.display(ps);
            throw new PluginExecutionException(mojoExecution, project, os.toString(), e);
        } catch (RuntimeException e) {
            mojoExecutionListener.afterExecutionFailure(
                    new MojoExecutionEvent(session, project, mojoExecution, mojo, e));
            throw e;
        } finally {
            mavenPluginManager.releaseMojo(mojo, mojoExecution);
            scope.exit();
            Thread.currentThread().setContextClassLoader(oldClassLoader);
            legacySupport.setSession(oldSession);
        }
    }