Model java class generated with @JsonPropertyOrder - wrong order

[edson-19]

Describe the bug
The model java class generated contains wrong fields order in @JsonPropertyOrder

To Reproduce
Steps to reproduce the behavior:

1. include the api.raml attached

2. include the attached schema file
   raml-codegen-issue.zip

3. include the attached example json request file

4. run the mvn clean install to generate the java client model class

5. verify the @JsonPropertyOrder in the generated java model class -- fields are not in the expected/required order to work properly when send the body request.

Expected behavior
the @JsonPropertyOrder in the generated java model class -- fields must be in the expected/required order to work properly when send the body request.

Party.java model generated with @JsonPropertyOrder
expected:
@JsonPropertyOrder({
"@id",
"PartyTypeCode",
"FullName",
"GovtID",
"GovtIDTC",
"GovtIDCertificationDate",
"ResidenceCountry",
"Person",
"Organization",
"Address",
"Phone",
"Producer",
"EMailAddress",
"OLifEExtension"
})

current:
@JsonPropertyOrder({
"@id",
"PartyTypeCode",
"FullName",
"GovtID",
"GovtIDTC",
"GovtIDCertificationDate",
"ResidenceCountry",
"Person",
"Address",
"Phone",
"EMailAddress",
"Producer",
"Organization",
"OLifEExtension"
})

Screenshots
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Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.