Help to overcome certificate error


Iam using gatling recorder to record the actions in an SSL site using firefox.

The site works fine and iam able to login successfully if iam using the browser directly

However, iam unable to login when i use a proxy through gatling to record.

The following is the exception thrown. Please help to resolve the issue

16:09:13.512 [WARN ] i.n.c.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. error:10000412:SSL routines:OPENSSL_internal:SSLV3_ALERT_BAD_CERTIFICATE
at io.netty.handler.ssl.ReferenceCountedOpenSslEngine.shutdownWithError(
at io.netty.handler.ssl.ReferenceCountedOpenSslEngine.sslReadErrorResult(
at io.netty.handler.ssl.ReferenceCountedOpenSslEngine.unwrap(
at io.netty.handler.ssl.ReferenceCountedOpenSslEngine.unwrap(
at io.netty.handler.ssl.ReferenceCountedOpenSslEngine.unwrap(
at io.netty.handler.ssl.SslHandler$SslEngineType$1.unwrap(
at io.netty.handler.ssl.SslHandler.unwrap(
at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(
at io.netty.handler.ssl.SslHandler.decode(
at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(
… 17 common frames omitted
Wrapped by: io.netty.handler.codec.DecoderException: error:10000412:SSL routines:OPENSSL_internal:SSLV3_ALERT_BAD_CERTIFICATE
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(


Hello there, did you ever resolve the issue ? I’m running into same issue and I don’t know how to resolve it

If your application still uses SSLv3 in 2020, you really have a issue.