Issues installing SSL certificate into Apache Tomcat

Hi,

I'm trying to install a certificate into Tomcat 8 and am having trouble.

I've been given a Trustwave certificate in the form of:

chain.cer
domainname.co.uk.cer
domainname.co.uk.der
domainname.co.uk.p7b
domainname.co.uk.pem

I create a keystore with:

keytool -genkey -keystore c:\livecontent03.jks -alias livecontent03 -keyalg RSA -keysize 2048 -validity 3650

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and fill out the answers with the details given to me although I leave the First name last name field blank as I was n't supplied these details.

I then import the CA certificate file "root certificate" with:

keytool -import -keystore c:\livecontent03.jks -trustcacerts -alias CACert -file c:\chain.cer -storepass ******

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and then import the signed certificate:

keytool -import -keystore c:\livecontent03.jks -trustcacerts -alias livecontent03 -file c:\domainname.co.uk.cer -storepass ******

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But at this point I get:

keytool error: java.lang.Exception: Public keys in reply and keystore don't match

I've spoken to Trustwave and they say that I should use "root certificate for Apache is STCA either from TEXT or PEM format"

So I tried again from scratch with stca.tx first before installing the domain.co.uk.cer but get the same error.

I'm now scratching my head and looking for advice.

Thanks.