diff --git a/lib/features/drilldown/DrilldownBreadcrumbs.js b/lib/features/drilldown/DrilldownBreadcrumbs.js
index 40b2dc030..ba01dfa6e 100644
--- a/lib/features/drilldown/DrilldownBreadcrumbs.js
+++ b/lib/features/drilldown/DrilldownBreadcrumbs.js
@@ -61,24 +61,31 @@ export default function DrilldownBreadcrumbs(eventBus, elementRegistry, canvas)
businessObjectParents = getBusinessObjectParentChain(element);
}
- var path = businessObjectParents.map(function(parent) {
- var title = escapeHTML(parent.name || parent.id);
- var link = domify('' + title + '');
-
- var parentPlane = canvas.findRoot(getPlaneIdFromShape(parent)) || canvas.findRoot(parent.id);
-
- // when the root is a collaboration, the process does not have a corresponding
- // element in the elementRegisty. Instead, we search for the corresponding participant
+ var path = businessObjectParents.flatMap(function(parent) {
+ var parentPlane =
+ canvas.findRoot(getPlaneIdFromShape(parent)) ||
+ canvas.findRoot(parent.id);
+
+ // when the root is a collaboration, the process does not have a
+ // corresponding element in the elementRegisty. Instead, we search
+ // for the corresponding participant
if (!parentPlane && is(parent, 'bpmn:Process')) {
var participant = elementRegistry.find(function(element) {
var businessObject = getBusinessObject(element);
- return businessObject && businessObject.get('processRef') && businessObject.get('processRef') === parent;
+ return businessObject && businessObject.get('processRef') === parent;
});
- parentPlane = canvas.findRoot(participant.id);
+ parentPlane = participant && canvas.findRoot(participant.id);
}
+ if (!parentPlane) {
+ return [];
+ }
+
+ var title = escapeHTML(parent.name || parent.id);
+ var link = domify('' + title + '');
+
link.addEventListener('click', function() {
canvas.setRootElement(parentPlane);
});
diff --git a/test/spec/features/drilldown/DrilldownSpec.js b/test/spec/features/drilldown/DrilldownSpec.js
index d17620e1f..2d8d96fbe 100644
--- a/test/spec/features/drilldown/DrilldownSpec.js
+++ b/test/spec/features/drilldown/DrilldownSpec.js
@@ -625,6 +625,18 @@ describe('features/drilldown - integration', function() {
expect(warnings).to.be.empty;
});
+
+ it('no for process', async function() {
+
+ const {
+ error,
+ warnings
+ } = await importXML(processMissingBpmnDiagram_XML);
+
+ // then
+ expect(error).not.to.exist;
+ expect(warnings).to.be.empty;
+ });
});
});
diff --git a/test/spec/features/drilldown/process-missing-bpmndiagram.bpmn b/test/spec/features/drilldown/process-missing-bpmndiagram.bpmn
new file mode 100644
index 000000000..9959debd8
--- /dev/null
+++ b/test/spec/features/drilldown/process-missing-bpmndiagram.bpmn
@@ -0,0 +1,15 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+