Kaleo Designer fails to render diagram if a node in the definition XML does not have metadata

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.0.0 DXP FP58, 7.0.0 DXP SP9, 7.0.X, 7.1.X, 7.2.X, Master
• Component/s: Business Productivity > Kaleo Designer
• Labels:
  • QA-AUTOMATION
  • fw_test_js
  • liferay-dxp-70-sp9
  • liferay-fixpack-de-58-7010
• Branch Version/s:
  7.2.x, 7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 5
• Last Working Version:
  7.0.X
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal-ee/pull/18792

If we write a definition in the XML editor from Kaleo Designer, and this definition has a node (state, task etc.) and this node does not have metadata, an error will prevent rendering the diagram when going back to visual mode.

Steps to reproduce

1. Go to Kaleo Designer.
2. Click in the FAB to create a new definition.
3. Click on the "Source (Kaleo XML)" tab.
4. Paste the content from single-node.xml on it.
5. Click on the "View" tab.

Expected results

• A single node would be rendered.

Actual results

• Nothing is rendered.
• A message appears on the console. Something like:

  instance.getRandomXY is not a function.