Why can't custom properties and methods be accessed from a component that is obtained using SwingUtilities.getAncestorOfClass?

[pturmel]

Custom properties are added to the java standard jython conversion by IA's PyComponentWrapper. For a complete discussion, read this entire topic:

Transaction groups triggered expression item updating when trigger is false

Ok, so I’ve been down the rabbit hole and found Ignition’s (undocumented) PyComponentWrapper. I haven’t deciphered it enough to be sure, but it seems to be invoked only for particular situations, based on the string constants in the class file (like “getComponent” and “getComponents”). To play with this, I constructed a conversion adapter like so: public class PyComponentAdapter implements PyObjectAdapter { public PyComponentAdapter() {} @Override public boolean canAdapt(Object jObj) { …

TL/DR: Install my Simulation Aids Integration Toolkit module to magically fix this, everywhere in Ignition. There is no other solution until IA eventually does this first party. See below.