| Pushing Apply and then Submit on the Style Edit Page causes:
org.apache.wicket.WicketRuntimeException: Null object returned for _expression_: legend.width for setting value: 0 on: StyleInfoImpl[dem]
Mailing list discussion: https://sourceforge.net/p/geoserver/mailman/message/35658949/ The error can be reproduced on the default point style. The issue is that the Abstract Style Page initializes a model object for the Legend, but effectively only during the constructor call – AbstractStylePage(StyleInfo style). The "apply" button kicks off some logic that nulls out the Legend object if the user didn't provide any legend-related input, but doesn't refresh the page (and thus doesn't re-initialize the legend object). When the user then pushes submit, the null legend model breaks the form submission. |
