public void execute()

in buildutils/buildutils-maven-plugin/src/main/java/org/apache/axiom/buildutils/sources/PostProcessMojo.java [64:129]
66 lines of code
11 McCabe index (conditional complexity)

    public void execute() throws MojoExecutionException, MojoFailureException {
        if (project.getPackaging().equals("pom")) {
            return;
        }
        Set<String> sources = new HashSet<>();
        try (JarInputStream in =
                new JarInputStream(new FileInputStream(project.getArtifact().getFile()))) {
            JarEntry entry;
            while ((entry = in.getNextJarEntry()) != null) {
                String name = entry.getName();
                if (name.endsWith(".class")) {
                    new ClassReader(in)
                            .accept(
                                    new SourceExtractor(
                                            sources, name.substring(0, name.lastIndexOf('/') + 1)),
                                    ClassReader.SKIP_CODE);
                }
            }
        } catch (IOException ex) {
            throw new MojoExecutionException("Error reading jar: " + ex.getMessage(), ex);
        }
        File sourcesJar =
                new File(
                        project.getBuild().getDirectory(),
                        project.getBuild().getFinalName() + "-sources.jar");
        File postProcessedSourcesJar =
                new File(
                        project.getBuild().getDirectory(),
                        project.getBuild().getFinalName() + "-post-processed-sources.jar");
        try (JarOutputStream out =
                new JarOutputStream(new FileOutputStream(postProcessedSourcesJar))) {
            processSourceJar(sourcesJar, sources, true, out);
            ArtifactFilter filter = new ScopeArtifactFilter(Artifact.SCOPE_RUNTIME);
            for (Artifact artifact : project.getArtifacts()) {
                if (sources.isEmpty()) {
                    break;
                }
                if (filter.include(artifact)) {
                    DefaultArtifactCoordinate coordinate = new DefaultArtifactCoordinate();
                    coordinate.setGroupId(artifact.getGroupId());
                    coordinate.setArtifactId(artifact.getArtifactId());
                    coordinate.setVersion(artifact.getVersion());
                    coordinate.setExtension("jar");
                    coordinate.setClassifier("sources");
                    Artifact resolvedArtifact;
                    try {
                        resolvedArtifact =
                                artifactResolver
                                        .resolveArtifact(
                                                session.getProjectBuildingRequest(), coordinate)
                                        .getArtifact();
                    } catch (ArtifactResolverException ex) {
                        getLog().warn("Could not get sources for " + artifact);
                        continue;
                    }
                    if (resolvedArtifact.isResolved()) {
                        processSourceJar(resolvedArtifact.getFile(), sources, false, out);
                    }
                }
            }
        } catch (IOException ex) {
            throw new MojoExecutionException("Error writing jar: " + ex.getMessage(), ex);
        }
        sourcesJar.delete();
        postProcessedSourcesJar.renameTo(sourcesJar);
    }