nadment commented on pull request #414:
URL: https://github.com/apache/incubator-hop/pull/414#issuecomment-733730832
>
>
> Doesn't work with metadata plugins. Uses the wrong classloader somewhere.
>
> org.apache.hop.core.exception.HopException:
> Unable to find editor class (org.neo4j.hop.ui.shared.NeoConnectionEditor)
>
> ```
> at
org.apache.hop.ui.core.metadata.MetadataManager.createEditor(MetadataManager.java:404)
> at
org.apache.hop.ui.core.metadata.MetadataManager.editWithDialog(MetadataManager.java:162)
> at
org.apache.hop.ui.core.widget.MetaSelectionLine.editMetadata(MetaSelectionLine.java:206)
> at
org.apache.hop.ui.core.widget.MetaSelectionLine.lambda$new$2(MetaSelectionLine.java:185)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
> at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5687)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1423)
> at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4955)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4448)
> at
org.neo4j.hop.transforms.graph.GraphOutputDialog.open(GraphOutputDialog.java:337)
> at
org.apache.hop.ui.hopgui.file.pipeline.delegates.HopGuiPipelineTransformDelegate.editTransform(HopGuiPipelineTransformDelegate.java:140)
> at
org.apache.hop.ui.hopgui.file.pipeline.HopGuiPipelineGraph.editTransform(HopGuiPipelineGraph.java:2870)
> at
org.apache.hop.ui.hopgui.file.pipeline.HopGuiPipelineGraph.mouseDoubleClick(HopGuiPipelineGraph.java:584)
> at
org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:200)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
> at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5687)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1423)
> at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4955)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4448)
> at org.apache.hop.ui.hopgui.HopGui.open(HopGui.java:352)
> at org.apache.hop.ui.hopgui.HopGui.main(HopGui.java:294)
> ```
Metadata editor work with Beam, Testing and Git plugins, it use same logic
to find editor class than dialog:
1) Try with className + Editor in same package
className = managedClass.getName();
className += "Editor";
2) Else try in hop.ui package
className = managedClass.getName();
className = className.replaceFirst("\\.hop\\.", ".hop.ui.");
className += "Editor";
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