override fun trackFailure(
    call: RealCall,
    e: IOException?,
  ) {
    var noNewExchangesEvent = false
    withLock {
      if (e is StreamResetException) {
        when {
          e.errorCode == ErrorCode.REFUSED_STREAM -> {
            // Stop using this connection on the 2nd REFUSED_STREAM error.
            refusedStreamCount++
            if (refusedStreamCount > 1) {

    @Test
    public void test_errorCodeGeneration() {
        long timestamp = System.currentTimeMillis();
        String errorCode = "error_code:" + Long.toHexString(timestamp);

        assertTrue(errorCode.startsWith("error_code:"));
        assertTrue(errorCode.length() > 11); // "error_code:" is 11 chars
    }

    // Test with different exception types
    @Test
    public void test_exceptionTypes() {

                public void onError(final String phase, final String errorCode) {
                    try {
                        sendSseEvent(writer, "error", Map.of("phase", phase, "message", errorCode, "errorCode", errorCode));
                        if (logger.isDebugEnabled()) {
                            logger.debug("SSE error event sent. phase={}, error={}", phase, errorCode);
                        }

        // Setter methods for testing
        public void setGrantedCredits(int grantedCredits) {
            this.grantedCredits = grantedCredits;
        }

        public void setErrorCode(int errorCode) {
            this.errorCode = errorCode;
        }

        public void setVerifyFailed(boolean verifyFailed) {
            this.verifyFailed = verifyFailed;
        }
    }

    @BeforeEach
    void setUp() {

    }

    @Test
    void testToString() {
        smb.command = ServerMessageBlock.SMB_COM_ECHO;
        smb.errorCode = 0;
        smb.mid = 1;
        String str = smb.toString();
        assertTrue(str.contains("command=SMB_COM_ECHO"));
        assertTrue(str.contains("errorCode=0"));
        assertTrue(str.contains("mid=1"));
    }

    @Test
    void testToStringUnknownCommand() {

import "fmt"

type s3Error struct {
	code       string
	message    string
	statusCode int
	cause      error
}

func (err *s3Error) Cause() error {
	return err.cause
}

func (err *s3Error) ErrorCode() string {
	return err.code
}

func (err *s3Error) ErrorMessage() string {
	return err.message
}

func (err *s3Error) HTTPStatusCode() int {
	return err.statusCode
}

ECL0068=InvalidKeyException occurred, because {0}
ECL0069=NoSuchPaddingException occurred, because {0}
ECL0070=Field({1}) of class({0}) not found
ECL0071=SQLException(Message=[{0}], ErrorCode={1}, SQLState={2}) occurred
ECL0072=SQLException(SQL=[{0}], Message=[{1}], ErrorCode={2}, SQLState={3}) occurred
ECL0091=Illegal URL({0})

import mockwebserver3.MockWebServer
import mockwebserver3.SocketEffect.CloseStream
import okhttp3.CallEvent.ConnectEnd
import okhttp3.CallEvent.ConnectFailed
import okhttp3.CallEvent.ConnectStart
import okhttp3.internal.http2.ErrorCode
import okhttp3.testing.Flaky
import org.junit.jupiter.api.AfterEach
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.Timeout

            }
            return;
        case SessionServicePacket.NEGATIVE_SESSION_RESPONSE:
            final int errorCode = in.read() & 0xFF;
            close();
            throw new NbtException(NbtException.ERR_SSN_SRVC, errorCode);
        case -1:
            throw new NbtException(NbtException.ERR_SSN_SRVC, NbtException.CONNECTION_REFUSED);
        default:
            close();

package parquet

type s3Error struct {
	code       string
	message    string
	statusCode int
	cause      error
}

func (err *s3Error) Cause() error {
	return err.cause
}

func (err *s3Error) ErrorCode() string {
	return err.code
}

func (err *s3Error) ErrorMessage() string {
	return err.message
}

func (err *s3Error) HTTPStatusCode() int {
	return err.statusCode
}