NullPointerException at a specific resolution using VendorOption graphic-resize

Description

Using the default geoserver DATA folder, and putting a square around a label of a point it throws an error on scale 1:8k.
It only happens at 1:8k with this font-size (2). If we change the font-size it happens at another scale.

How to replicate:
On point.sld add the following rule:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 <Rule> <TextSymbolizer uom="http://www.opengeospatial.org/se/units/metre"> <Label> <ogc:PropertyName>NAME</ogc:PropertyName> </Label> <Font> <CssParameter name="font-size"> <ogc:Literal>2</ogc:Literal> </CssParameter> </Font> <Graphic> <Mark> <WellKnownName>square</WellKnownName> <Stroke> <CssParameter name="stroke">#ff0000</CssParameter> <CssParameter name="stroke-width">0.5</CssParameter> </Stroke> </Mark> </Graphic> <VendorOption name="spaceAround">-1</VendorOption> <VendorOption name="graphic-resize">stretch</VendorOption> <VendorOption name="graphic-margin">1</VendorOption> </TextSymbolizer> </Rule>

Open the Layer Preview of Geoserver web to test or put the URL in the browser:
http://localhost/geoserver/tiger/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&FORMAT=image%2Fpng&TRANSPARENT=true&LAYERS=tiger%3Apoi&exceptions=application%2Fvnd.ogc.se_inimage&STYLES=point&SRS=EPSG%3A4326&WIDTH=1001&HEIGHT=501&BBOX=-74.01942026886464%2C40.70413100448132%2C-73.9979623529005%2C40.71486008438587

Got the error:

1 2 3 4 5 6 7 8 9 10 Caused by: java.lang.NullPointerException at org.geotools.renderer.label.LabelPainter.paintStraightLabel(LabelPainter.java:371) at org.geotools.renderer.label.LabelCacheImpl.paintPointLabelInternal(LabelCacheImpl.java:1457) at org.geotools.renderer.label.LabelCacheImpl.paintPointLabel(LabelCacheImpl.java:1299) at org.geotools.renderer.label.LabelCacheImpl.paintLabel(LabelCacheImpl.java:556) at org.geotools.renderer.label.LabelCacheImpl.paintLabels(LabelCacheImpl.java:517) at org.geotools.renderer.label.LabelCacheImpl.end(LabelCacheImpl.java:465) at org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:940) at org.geoserver.wms.map.RenderedImageMapOutputFormat.produceMap(RenderedImageMapOutputFormat.java:594) ... 129 more

Environment

None

Status

Assignee

Unassigned

Reporter

Tiago Vieira

Triage

None

Fix versions

None

Affects versions

2.15.0

Priority

Medium
Configure