.getExtension(ExtensionManualRequestEditor.NAME);
if (extManReqEdit != null) {
extManReqEdit.removeManualSendEditor(WebSocketMessageDTO.class);
// clear up persistent connection listener for http manual send editor
ManualRequestEditorDialog sendEditor = extManReqEdit.getManualSendEditor(HttpMessage.class);
if (sendEditor != null) {
ManualHttpRequestEditorDialog httpSendEditor = (ManualHttpRequestEditorDialog) sendEditor;
httpSendEditor.removePersistentConnectionListener(this);
}
}