[Simple-support] Problem serialzing object with lists

[Frank B. <f_b...@ya...>]

Hi,=0A=0Ai have created the following objects:=0A=0Apublic interface IPrefe=
rence {=0A    =0A}=0A=0Apublic class TestPref1 implements IPreference {=0A =
   @Element(name=3D"id")=0A    private long id =3D 0;=0A    =0A    @Element=
(name=3D"pref1name")=0A    private String name =3D "";=0A    =0A    /** Cre=
ates a new instance of TestPref1 */=0A    public TestPref1() {=0A    }=0A  =
  public long getId() {=0A        return id;=0A    }=0A    public void setI=
d(long id) {=0A        this.id =3D id;=0A    }=0A    public String getName(=
) {=0A        return name;=0A    }=0A    public void setName(String name) {=
=0A        this.name =3D name;=0A    }=0A    =0A}=0A=0Apublic class TestPre=
f2 implements IPreference {=0A    @Element(name=3D"pref2code")=0A    privat=
e String code =3D "";=0A    =0A    /** Creates a new instance of TestPref2 =
*/=0A    public TestPref2() {=0A    }=0A    public String getCode() {=0A   =
     return code;=0A    }=0A    public void setCode(String code) {=0A      =
  this.code =3D code;=0A    }=0A    =0A}=0A=0A@Root(name=3D"preferencegroup=
")=0Apublic class PreferenceGroup implements IPreference {=0A    @ElementLi=
st(name=3D"preferences")=0A    private List<IPreference> preferences =3D nu=
ll;=0A    =0A    @Attribute(name=3D"groupcode")=0A    private String groupC=
ode =3D "";=0A    =0A    public List<IPreference> getPreferences() {=0A    =
    return this.preferences;=0A    }=0A    =0A    public void setPreference=
s(List<IPreference> preferences) {=0A        this.preferences =3D preferenc=
es;=0A    }=0A    public String getGroupCode() {=0A        return groupCode=
;=0A    }=0A    public void setGroupCode(String groupCode) {=0A        this=
.groupCode =3D groupCode;=0A    }=0A}=0A=0A=0Awhen trying to do the followi=
ng:=0A=0A        PreferenceGroup group =3D new PreferenceGroup();=0A       =
 group.setGroupCode("TESTGROUP");=0A        List<IPreference> preferences =
=3D new ArrayList<IPreference>();=0A        TestPref1 pref1 =3D new TestPre=
f1();=0A        pref1.setId(1);=0A        pref1.setName("test preference 1"=
);=0A        preferences.add(pref1);=0A        TestPref2 pref2 =3D new Test=
Pref2();=0A        pref2.setCode("TSTPRF2");=0A        preferences.add(pref=
2);=0A        group.setPreferences(preferences);=0A        Serializer seria=
lizer =3D new Persister();=0A        File result =3D new File("preferences.=
xml");=0A        try {=0A            serializer.write(group, result);=0A   =
     } catch (Exception ex) {=0A            ex.printStackTrace();=0A       =
 }=0A=0AI get the error:=0A=0Aorg.simpleframework.xml.transform.TransformEx=
ception: Transform of class com.libesoft.rcp.preferences.test.TestPref1 not=
 supported=0A        at org.simpleframework.xml.transform.PackageMatcher.ma=
tch(PackageMatcher.java:88)=0A        at org.simpleframework.xml.transform.=
DefaultMatcher.matchType(DefaultMatcher.java:111)=0A        at org.simplefr=
amework.xml.transform.DefaultMatcher.match(DefaultMatcher.java:90)=0A      =
  at org.simpleframework.xml.transform.Transformer.write(Transformer.java:1=
29)=0A        at org.simpleframework.xml.load.PrimitiveFactory.getText(Prim=
itiveFactory.java:128)=0A        at org.simpleframework.xml.load.Primitive.=
write(Primitive.java:200)=0A        at org.simpleframework.xml.load.Primiti=
veList.write(PrimitiveList.java:157)=0A        at org.simpleframework.xml.l=
oad.Composite.writeElement(Composite.java:589)=0A        at org.simpleframe=
work.xml.load.Composite.writeElements(Composite.java:485)=0A        at org.=
simpleframework.xml.load.Composite.write(Composite.java:423)=0A        at o=
rg.simpleframework.xml.load.Composite.write(Composite.java:401)=0A        a=
t org.simpleframework.xml.load.Traverser.write(Traverser.java:186)=0A      =
  at org.simpleframework.xml.load.Traverser.write(Traverser.java:165)=0A   =
     at org.simpleframework.xml.load.Traverser.write(Traverser.java:143)=0A=
        at org.simpleframework.xml.load.Persister.write(Persister.java:608)=
=0A        at org.simpleframework.xml.load.Persister.write(Persister.java:5=
90)=0A        at org.simpleframework.xml.load.Persister.write(Persister.jav=
a:571)=0A        at org.simpleframework.xml.load.Persister.write(Persister.=
java:687)=0A        at org.simpleframework.xml.load.Persister.write(Persist=
er.java:669)=0A        at org.simpleframework.xml.load.Persister.write(Pers=
ister.java:650)=0A        at org.simpleframework.xml.load.Persister.write(P=
ersister.java:629)=0A=0A=0AAny ideas what i am doing wrong????=0A=0AThanks=
=0A=0AFrank