if (message != null) {
                message = message.toLowerCase();
                // Connection reset, network unreachable, etc. might be temporary
                return message.contains("connection reset") || message.contains("network unreachable")
                        || message.contains("host unreachable") || message.contains("timeout");
            }
            return true; // Generic socket errors might be recoverable
        }

    void testStringAndThrowableConstructor() {
        // Test the constructor with both message and cause
        String message = "Failed to connect due to timeout.";
        Throwable cause = new IllegalStateException("Network unreachable");
        ConnectionTimeoutException exception = new ConnectionTimeoutException(message, cause);
        assertEquals(message, exception.getMessage(), "Message should match the provided string");

    // If there was an interruption or timeout (SocketTimeoutException), don't recover.
    // For the socket connect timeout case we do not try the same host with a different
    // ConnectionSpec: we assume it is unreachable.
    e is InterruptedIOException -> false

    // If the problem was a CertificateException from the X509TrustManager, do not retry.
    e is SSLHandshakeException && e.cause is CertificateException -> false

package cmd

import (
	"context"
	"errors"
	"fmt"

	etcd "go.etcd.io/etcd/client/v3"
)

var errEtcdUnreachable = errors.New("etcd is unreachable, please check your endpoints")

func etcdErrToErr(err error, etcdEndpoints []string) error {
	if err == nil {
		return nil
	}
	switch err {
	case context.DeadlineExceeded:

    assertSame(canonical, pool.intern(canonical));

    WeakReference<MyInt> signal = new WeakReference<>(canonical);
    canonical = null; // Hint to the JIT that canonical is unreachable

    GcFinalization.awaitClear(signal);
    assertSame(not, pool.intern(not));
  }

  private static final class MyInt {
    private final int i;

    MyInt(int i) {
      this.i = i;
    }

    assertSame(canonical, pool.intern(canonical));

    WeakReference<MyInt> signal = new WeakReference<>(canonical);
    canonical = null; // Hint to the JIT that canonical is unreachable

    GcFinalization.awaitClear(signal);
    assertSame(not, pool.intern(not));
  }

  private static final class MyInt {
    private final int i;

    MyInt(int i) {
      this.i = i;
    }

 5. It sends the HTTP request and reads the response.

If there's a problem with the connection, OkHttp will select another route and try again. This allows OkHttp to recover when a subset of a server's addresses are unreachable. It's also useful when a pooled connection is stale or if the attempted TLS version is unsupported.

		ctx, cancel := context.WithTimeout(r.Context(), defaultContextTimeout)
		defer cancel()
		if _, err := globalEtcdClient.Get(ctx, "health"); err != nil {
			// etcd unreachable throw an error..
			switch r.Method {
			case http.MethodHead:
				apiErr := toAPIError(r.Context(), err)
				writeResponse(w, apiErr.HTTPStatusCode, nil, mimeNone)
			case http.MethodGet:

  }

  /**
   * It's possible a self-terminating deflated message will contain trailing data that won't be
   * processed during inflation. If this happens, we need to either reject the message or discard
   * the unreachable data. We choose to discard it!
   *
   * In practice this could happen if the encoder doesn't strip the [0x00, 0x00, 0xff, 0xff] suffix
   * and that ends up repeated.
   *

    try {
      sourceResult = getDone(localInputFuture);
    } catch (CancellationException e) {
      // TODO(user): verify future behavior - unify logic with getFutureValue in AbstractFuture. This
      // code should be unreachable with correctly implemented Futures.
      // Cancel this future and return.
      // At this point, inputFuture is cancelled and outputFuture doesn't exist, so the value of
      // mayInterruptIfRunning is irrelevant.