getContentTypeHeader

[stormning]

After using sipMessage.getContentTypeHeader() ,
then use sipMessage.toBuffer().toString()
I found the contentTypeHeader value is missing

[stormning]

io.pkts.packet.sip.header.impl.ContentTypeHeaderImpl#transferValue
only transfer params to dst.
I modified it as below , and resolved the problem
@OverRide
protected void transferValue(Buffer dst) {
getValue().getBytes(0, dst);
super.transferValue(dst);
}

[jonbo372]

Thanks for filing the issue. This is an issue with siplib in pkts.io. Moving the bug to that project.

aboutsip/pkts#65