On 04/12/2019 05:19, Kushagra Bindal wrote:
> Hi,
> 
> I tried to upgrade my tomcat on OpenAM from 8.5.24 to 9.0.29 version and I
> got below error in catalina.out during startup itself.

That stack trace shows that this error is in response to an incoming
request, not part of the start-up sequence.

> [http-nio-8080-exec-7] org.apache.coyote.AbstractProcessor.parseHost The
> host [:] is not valid

You have a broken client that is presenting an invalid Host header. If
you want the error to go away, fix the broken client.

Mark

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