Program: 65215
Project: 65215
Buggy source:
public void marshallEntity(Object object,MediaType mediaType,OutputStream output) throws JAXBException {
  Marshaller marshaller=getJAXBContext().createMarshaller();
  marshaller.setProperty(MEDIA_TYPE,mediaType.toString());
  marshaller.setProperty(org.eclipse.persistence.jaxb.JAXBContext.JSON_INCLUDE_ROOT,false);
  marshaller.setAdapter(new LinkAdapter(getBaseURI().toString(),this));
  marshaller.setListener(new Marshaller.Listener(){
    @Override public void beforeMarshal(    Object source){
      if (source instanceof DynamicEntity) {
        DynamicEntityImpl sourceImpl=(DynamicEntityImpl)source;
        PropertyChangeListener listener=sourceImpl._persistence_getPropertyChangeListener();
        sourceImpl._persistence_setPropertyChangeListener(null);
        ((DynamicEntity)source).set("String_Node_Str",source);
        sourceImpl._persistence_setPropertyChangeListener(listener);
      }
    }
  }
);
  if (mediaType == MediaType.APPLICATION_XML_TYPE && object instanceof List) {
    marshaller.setProperty(Marshaller.JAXB_FRAGMENT,true);
    XMLOutputFactory outputFactory=XMLOutputFactory.newFactory();
    XMLStreamWriter writer=null;
    try {
      writer=outputFactory.createXMLStreamWriter(output);
      writer.writeStartDocument();
      writer.writeStartElement("String_Node_Str");
      for (      Object o : (List<Object>)object) {
        marshaller.marshal(o,writer);
      }
      writer.writeEndDocument();
    }
 catch (    Exception e) {
      e.printStackTrace();
      throw new RuntimeException(e);
    }
  }
 else {
    marshaller.marshal(object,output);
  }
}

Fixed version (ground truth):
public void marshallEntity(Object object,MediaType mediaType,OutputStream output) throws JAXBException {
  Marshaller marshaller=getJAXBContext().createMarshaller();
  marshaller.setProperty(MarshallerProperties.MEDIA_TYPE,mediaType.toString());
  marshaller.setProperty(MarshallerProperties.JSON_INCLUDE_ROOT,false);
  marshaller.setAdapter(new LinkAdapter(getBaseURI().toString(),this));
  marshaller.setListener(new Marshaller.Listener(){
    @Override public void beforeMarshal(    Object source){
      if (source instanceof DynamicEntity) {
        DynamicEntityImpl sourceImpl=(DynamicEntityImpl)source;
        PropertyChangeListener listener=sourceImpl._persistence_getPropertyChangeListener();
        sourceImpl._persistence_setPropertyChangeListener(null);
        ((DynamicEntity)source).set("String_Node_Str",source);
        sourceImpl._persistence_setPropertyChangeListener(listener);
      }
    }
  }
);
  if (mediaType == MediaType.APPLICATION_XML_TYPE && object instanceof List) {
    marshaller.setProperty(Marshaller.JAXB_FRAGMENT,true);
    XMLOutputFactory outputFactory=XMLOutputFactory.newFactory();
    XMLStreamWriter writer=null;
    try {
      writer=outputFactory.createXMLStreamWriter(output);
      writer.writeStartDocument();
      writer.writeStartElement("String_Node_Str");
      for (      Object o : (List<Object>)object) {
        marshaller.marshal(o,writer);
      }
      writer.writeEndDocument();
    }
 catch (    Exception e) {
      e.printStackTrace();
      throw new RuntimeException(e);
    }
  }
 else {
    marshaller.marshal(object,output);
  }
}