…nments. (#494)

This commit improves the reliability of BackoffManager unit tests by replacing the use of Thread.sleep() with a more robust approach that manipulates lastRouteProbes to simulate the cooldown period. This enhancement ensures that the tests run successfully even in resource-constrained environments, making them more resilient and reliable.

… to Remove Thread.sleep(). (#495)

This commit enhances the ExponentialBackoffManager and TestLinearBackoffManager unit tests by replacing the use of Thread.sleep() with direct manipulation of internal state to simulate the cooldown period. This change improves test reliability and ensures consistent behavior in resource-constrained environments.

Resolved a bug where the response body was truncated to 256 bytes in all cases, including successful responses.

…connection having been closed or discarded instead of plain IllegalStateException

… a list of resolved addresses (#533)

…the default connection manager

…ection endpoint

…ticular version of HTTP protocol during the TLS handshake