}
if(!didDrawImage && processDefinitionEntity.isGraphicalNotationDefined()) {
ProcessEngineConfiguration processEngineConfiguration = ProcessEngines.getDefaultProcessEngine().getProcessEngineConfiguration();
ProcessDiagramGenerator diagramGenerator = processEngineConfiguration.getProcessDiagramGenerator();
StreamResource diagram = new ProcessDefinitionImageStreamResourceBuilder()
.buildStreamResource(processInstance, repositoryService, runtimeService, diagramGenerator, processEngineConfiguration);
if(diagram != null) {
Label header = new Label(i18nManager.getMessage(Messages.PROCESS_HEADER_DIAGRAM));
header.addStyleName(ExplorerLayout.STYLE_H3);