DnsErrorCauseException Class — netty Architecture

Source Code

resolver-dns/src/main/java/io/netty/resolver/dns/DnsErrorCauseException.java lines 28–60

public final class DnsErrorCauseException extends RuntimeException {

    private static final long serialVersionUID = 7485145036717494533L;

    private final DnsResponseCode code;

    private DnsErrorCauseException(String message, DnsResponseCode code, boolean shared) {
        super(message, null, false, true);
        this.code = code;
        assert shared;
    }

    // Override fillInStackTrace() so we not populate the backtrace via a native call and so leak the
    // Classloader.
    @Override
    public Throwable fillInStackTrace() {
        return this;
    }

    /**
     * Returns the DNS error-code that caused the {@link UnknownHostException}.
     *
     * @return the DNS error-code that caused the {@link UnknownHostException}.
     */
    public DnsResponseCode getCode() {
        return code;
    }

    static DnsErrorCauseException newStatic(String message, DnsResponseCode code, Class<?> clazz, String method) {
        final DnsErrorCauseException exception = new DnsErrorCauseException(message, code, true);
        return ThrowableUtil.unknownStackTrace(exception, clazz, method);
    }
}