GetLegendGraphic causes NullPointerException if any SLD rules are missing <Title> tags
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Key: GEOS-4127
URL: http://jira.codehaus.org/browse/GEOS-4127
Project: GeoServer
Issue Type: Bug
Components: WMS
Affects Versions: 2.1-beta1
Environment: SuSE Enterprise 10, Sun Java 1.6.0_13, Tomcat 5.5.30
Reporter: Joshua M. Thompson
Assignee: Andrea Aime
When requesting the legend for a layer, if any of the SLD rules for that layer do not have titles GeoServer will throw a NullPointerException. Adding a non-empty title (even just a single space) fixes the crash, at the expense of having a rather ugly blank line in the legend output.
The culprit seems to be in DefaultRasterLegendProducer.java around line 311:
labels[i] = rule.getDescription().getTitle().toString();
if (labels[i] == null) labels[i] = rule.getName();
if (labels[i] == null) labels[i] = "";
If the title doesn't exist it will try to call toString() on a null pointer.
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