I managed to get this to work, generating a List of Strings.
Within the ApiModelProperty with springfox 2, write your example as follows:
example = "[\"AddLine1\",\"AddLine2\",\"AddLine3\",\"AddLine4\"]"
Here is my example:
@ApiModelProperty(value = "Address", name = "addLines",
example = "[\"AddLine1\",\"AddLine2\",\"AddLine3\",\"AddLine4\"]")
When I render the swagger page, I get the following output:
"addLines": [
"AddLine1",
"AddLine2",
"AddLine3",
"AddLine4"
],