Java 来自 pmd:DataflowAnomalyAnalysis sslContext 的 UR 异常和 DR 异常

Question

我想要一些帮助来理解为什么当我在运行 SonarQube 上尝试构建 Netty SslContext 的代码时，我从 pmd:DataflowAnomalyAnalysis 得到了 UR 异常和 DR 异常。

代码工作得很好，但我在 keystorePath 和 truststorePath 变量上得到了 UR 和 DR。

请指点？谢谢

@Value("${server.ssl.key-store}") private String keyStorePath;
    @Value("${server.ssl.key-store-password}") private String keyStorePassPhrase;
    @Value("${server.ssl.key-password}") private String keyPassPhrase;
    @Value("${server.ssl.key-store-type}") private String keyStoreType;
    @Value("${server.ssl.trust-store}") private String trustStorePath;
    @Value("${server.ssl.trust-store-password}") private String trustStorePassPhrase;
    @Value("${server.ssl.trust-store-type}") private String trustStoreType;

    public SslContext getSslContext() {
        try {
            final Path     keystorePath = Paths.get(keyStorePath);
            final KeyStore keyStore     = KeyStore.getInstance(keyStoreType);
            try (InputStream keyStoreFile = Files.newInputStream(keystorePath)) {
                keyStore.load(keyStoreFile, keyStorePassPhrase.toCharArray());
            }
            final KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
            keyManagerFactory.init(keyStore, keyPassPhrase.toCharArray());

            final Path     truststorePath = Paths.get(trustStorePath);
            final KeyStore trustStore     = KeyStore.getInstance(trustStoreType);
            try (InputStream trustStoreFile = Files.newInputStream(truststorePath)) {
                trustStore.load(trustStoreFile, trustStorePassPhrase.toCharArray());
            }
            final TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
            trustManagerFactory.init(trustStore);

            return SslContextBuilder.forClient().keyManager(keyManagerFactory).trustManager(trustManagerFactory).build();
        } catch (KeyStoreException | IOException | UnrecoverableKeyException | NoSuchAlgorithmException | CertificateException e) {
            e.printStackTrace();
            return null;
        }
    }

Answer 1

根据评论，最新的 PMD 7+ 版本确实不推荐使用此规则

Java 来自 pmd:DataflowAnomalyAnalysis sslContext 的 UR 异常和 DR 异常

Java UR-anomaly and DR-anomaly from pmd:DataflowAnomalyAnalysis sslContext

java

pmd

sonarqube

sslcontext