// Assert
        if (msg == null) {
            assertNull(ex.getMessage(), "Null message should remain null");
        } else {
            assertEquals(msg, ex.getMessage(), "Message should be stored as provided");
        }
        assertNull(ex.getCause(), "Cause should be null for message-only ctor");

        if (throwable != null) {
          if (throwable !is IOException) throw throwable
          if (firstException == null) {
            firstException = throwable
          } else {
            firstException.addSuppressed(throwable)
          }
        }

        val nextPlan = connectResult.nextPlan
        if (nextPlan != null) {

                    this.primaryDomain = a.getUserDomain() != null ? a.getUserDomain().toUpperCase() : "?";
                    if (server.encryptedPasswords) {
                        this.lmHash = a.getAnsiHash(tc, server.encryptionKey);
                        this.ntHash = a.getUnicodeHash(tc, server.encryptionKey);
                        // prohibit HTTP auth attempts for the null session

        authenticator = new NtlmPasswordAuthenticator("DOMAIN", "username", (String) null);

        assertNull(authenticator.getPassword(), "getPassword should return null for null password");
        assertNull(authenticator.getPasswordAsCharArray(), "getPasswordAsCharArray should return null for null password");

        // secureWipePassword should not throw exception
        authenticator.secureWipePassword();

  private var testClient: OkHttpClient? = null
  private var uncaughtException: Throwable? = null
  private lateinit var testName: String
  private var defaultUncaughtExceptionHandler: Thread.UncaughtExceptionHandler? = null
  private var taskQueuesWereIdle: Boolean = false
  private val connectionListener = RecordingConnectionListener()

  var logger: Logger? = null

  var recordEvents = true
  var recordTaskRunner = false

     */
    public StringSource(CharSequence content) {
        this(content, null);
    }

    /**
     * Creates a new source backed by the specified string.
     *
     * @param content The String representation, may be empty or {@code null}.
     * @param location The location to report for this use, may be {@code null}.
     */

        } else {
            return null;
        }
    }

    public static ArtifactRepositoryPolicy buildArtifactRepositoryPolicy(
            org.apache.maven.model.RepositoryPolicy policy) {
        boolean enabled = true;

        String updatePolicy = null;

        String checksumPolicy = null;

        if (policy != null) {
            enabled = policy.isEnabled();

                            valueClass == null ? null : valueClass.getName(), valueClass == null ? null : valueClass.getClassLoader(),
                            value, targetClass == null ? null : targetClass.getName(),
                            targetClass == null ? null : targetClass.getClassLoader()),
                    e);
        }
    }

    /**

  /** Initialized in [callStart]. */
  private var callStackTrace: Any? = null

  /** Finds an exchange to send the next request and receive the next response. */
  private var exchangeFinder: ExchangeFinder? = null

  var connection: RealConnection? = null
    private set
  private var timeoutEarlyExit = false

  /**

                "Constructor com.example.Source(java.lang.String): Parameter 0 from null accepting to non-null accepting breaking change."
            )
            assertHasNoWarning()
            assertHasNoInformation()
        }
    }

    @Test
    fun `from null returning to non-null returning is not breaking`() {