CXF REST is not parsing the header value correctly if a comma is specified in a parameter value.

The RFC2616 and RFC822 states that a header is comprised of the following:

header = [ header-value ] *( "," [ header-value ] )
header-value = name [ "=" [ value ] ] *( ";" [ param ] )
param = name [ "=" [ value ] ]
name = token
value = token | quoted-string
token = 1*<any CHAR except CTLs or separators>
separators = "(" | ")" | "<" | ">" | "@"

The backslash character ("\") MAY be used as a single-character
quoting mechanism only within quoted-string and comment constructs.

quoted-pair = "\" CHAR

Based on the above, this header should be valid

xm-my-header : foo,bar,dogs="snoopy,bowzer";cat=garfield

My REST service defines the method parameter this in its interface as

@HeaderParam("xm-my-header") List<String> args

I expected CXF to pass 3 elements into the service:

[0] foo
[1] bar
[2] dogs="snoopy,bowzer"; cat=garfield

But, this is what CXF passes into the service:

[0] foo
[1] bar
[2] dogs="snoopy
[3] bowzer";cat=garfield

CFX is parsing the header value using the comma as a delimiter. But, it is ignoring the fact that the value may be within a quoted-string.