Deserializing JavaFX properties with yWorks and Java Reflection API - javafx

Question

I am implementing a process managing tool and I am using (for research purposes) the yWorks library "yFiles for JavaFX".
I am doing fine so far, but that one thing just sets a show stopper for me for 2 days now:
Since im using JavaFX beans and their properties to edit and display my data, I had to implement some kind of custom serializer:
graphMLIOHandler.addHandleSerializationListener(
(source, hsArgs) -> {
// Only serialize items that are of the specific type.
if (hsArgs.getItem() instanceof StringProperty) {
//serialize
} else if (hsArgs.getItem() instanceof IntegerProperty) {
//serialize
} else if (hsArgs.getItem() instanceof DoubleProperty) {
//serialize
} else if (hsArgs.getItem() instanceof SimpleListProperty) {
//serialize
}
});
But when loading the file i was writing I get a IllegalArgumentException. yFiles wants to invoke a setValue method and is throwing a DeserializationNotSupportedException. So I tried to implement a addHandleDeserializationListener. Didn't work. Then I implemented MarkupExtensions for my Project class. Nothing changed. Giving you guys the code for the latter implementation and hoping that somebody finds what i missed. Im kinda on my last resort here..
CustomGraphController:
public class CustomGraphController extends GraphControl{
private IGraph graph ;
private GraphMLIOHandler graphMLIOHandler;
public CustomGraphController(){
super();
graph = this.getGraph();
graph.setTag(new Project());
}
}
Project.class:
#GraphML(markupExtensionConverter = ProjectMEC.class)
public class Project {
SimpleListProperty<ParameterOccurrence> generalParameters;
public Project(){
generalParameters = new SimpleListProperty<>(FXCollections.observableArrayList());
}
public ObservableList<ParameterOccurrence> getGeneralParameters() {
return generalParameters;
}
public SimpleListProperty<ParameterOccurrence> generalParametersProperty() {
return generalParameters;
}
public void setGeneralParameters(ObservableList<ParameterOccurrence> generalParameters) {
this.generalParameters.set(generalParameters);
}
}
ProjectME.class
public class ProjectME extends MarkupExtension {
ArrayList<ParameterOccurrence> generalParameters;
public ProjectME() {
super();
}
public ArrayList<ParameterOccurrence> getGeneralParameters() {
return generalParameters;
}
public void setGeneralParameters(ArrayList<ParameterOccurrence> generalParameters) {
this.generalParameters = generalParameters;
}
#Override
public Object provideValue(ILookup iLookup) {
Project ret = new Project();
ret.getGeneralParameters().addAll(generalParameters);
return ret;
}
}
ProjectMEC.class:
public class ProjectMEC implements IMarkupExtensionConverter {
#Override
public boolean canConvert(IWriteContext iWriteContext, Object o) {
return o instanceof Project;
}
#Override
public MarkupExtension convert(IWriteContext iWriteContext, Object o) {
ProjectME extension = new ProjectME();
ObservableList<ParameterOccurrence> temp = FXCollections.observableArrayList(((Project)o).getGeneralParameters());
extension.getGeneralParameters().addAll(temp);
return extension;
}
}
Stacktrace:
Caused by: com.yworks.yfiles.graphml.DeserializationNotSupportedException: Error parsing property GeneralParameters: argument type mismatch
at com.yworks.yfiles.graphml.XamlReader.b(Unknown Source)
at com.yworks.yfiles.graphml.XamlReader.c(Unknown Source)
... 83 more
Caused by: java.lang.IllegalArgumentException: argument type mismatch
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.yworks.yfiles.graphml.PropertyInfo.setValue(Unknown Source)
at com.yworks.yfiles.graphml.Property.setValue(Unknown Source)
... 85 more
My guess was that the GeneralParameters property (even though I
tryed to implement a addHandleDeserializationListener for
SimpleListProperty) somehow need this MarkupExtension. But the
stacktrace stayed exactly the same and since the reflection API and
the closed source stuff I cant find, where exactly the Exception is
thrown...
ANY idea, whats happending?