How to Bypass SSL Certificate Errors in Apache HttpClient 4.0?

Ignoring SSL Certificate Errors in Apache HttpClient 4.0

Invalid SSL certificate errors can arise when attempting to establish an HTTPS connection. To bypass these errors in Apache HttpClient 4.0, the following guide provides a solution.

Apache HttpClient 4.3 and below utilizes AllowAllHostnameVerifier to permit all hostnames. This is achieved through the following code:

CloseableHttpClient httpClient = HttpClients
    .custom()
    .setHostnameVerifier(new AllowAllHostnameVerifier())
    .build();

For HttpClient versions 4.4 and above, the updated syntax to accomplish the same functionality is:

CloseableHttpClient httpClient = HttpClients
    .custom()
    .setSSLHostnameVerifier(NoopHostnameVerifier.INSTANCE)
    .build();

By implementing this approach, all hostnames will be allowed, effectively bypassing SSL certificate errors.

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