What steps will reproduce the problem?

VCard vcard = new VCard();

StructuredName name = new StructuredName();
name.setGiven("John");
name.setFamily("Smith");
vcard.setStructuredName(name);
vcard.setGender(Gender.male());

Address address = new Address();
address.addType(AddressType.HOME);
address.setLocality("City");
address.setStreetAddress("1234 Somestreet");

vcard.addAddress(address);

String html = Ezvcard.writeHtml(vcard).go();
System.out.println(html);

What is the expected output?

...
<span class="street-address">1234 Somestreet</span><br />
...

What is the actual output?

...
<span class="street-address"></span><br />
...

What version of ez-vcard are you using?
0.9.5

What version of Java are you using?
1.7.0

Please provide any additional information below.