[Geoserver-devel] [JIRA] (GEOS-8478) gwc-distributed plugin (Hazelcast) breaks "Caching Defaults" tab in Geoserver GUI

[_Failed_to_Retrieve]

Maciej Filocha created an issue

GeoServer / GEOS-8478

gwc-distributed plugin (Hazelcast) breaks “Caching Defaults” tab in Geoserver GUI

Issue Type:	Bug
Affects Versions:	2.9.4, 2.10.2, 2.12.1
Assignee:	Unassigned
Components:	Community modules
Created:	07/Dec/17 2:04 PM
Environment:	Ubuntu 16.04 LTS
Priority:	Medium
Reporter:	Maciej Filocha

After installing gwc-distributed plugin and enabling Hazelcast In-memory cache, any subseqent attempts to open a tab “Tile Caching/Caching Defaults” result in error: Oops, something went wrong… org.apache.wicket.WicketRuntimeException: Exception in rendering component: [DropDownChoice [Component id = policy]] at org.apache.wicket.Component.internalRenderComponent(Component.java:2625) at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1668) at org.apache.wicket.Component.internalRender(Component.java:2401) … Caused by: java.lang.NullPointerException: List of choices is null - Was the supplied ‘Choices’ model empty? at org.apache.wicket.markup.html.form.AbstractChoice.getChoices(AbstractChoice.java:233) …

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