I'm having a hard time upgrading from 35-RC to 35.0 in our Spring Boot
application, presumably caused by the late schema parser changes.
This application provides user functionality to load any WFS (and WMS,
WMTS) services and use these to get features.
I don't see anything I might have missed in the upgrade instructions,
but would be happy to be corrected.
I have already added a GeoTools initializer that sets the entity
resolver to an instance of
using
```java
GeoTools.init();
Hints.putSystemDefault(Hints.ENTITY_RESOLVER,
PreventLocalEntityResolver.INSTANCE);
```
We were already using PreventLocalEntityResolver on our WFS connection
as a parameter.
According to the documentation
[https://docs.geotools.org/latest/userguide/library/metadata/geotools.html]
this resolver should allow any schema access as long as it is not
"local", quoting: "...only allows DTD and XML Schema references to
remote resources".
Everything works as expected with 35-RC.
I have created a small/reproducer app:
https://github.com/Tailormap/entityresolver-issues that demonstrates the
problem (the master branch works fine using 35-RC, a PR:
https://github.com/Tailormap/entityresolver-issues/pull/1 updating to
35.0 fails)
The sample application retrieves a single feature from a GeoServer 3 WFS
and a mapserver WFS.
I see the following 2 problems occurring:
========== Problem 1 ==========
It seems that the entity resolver that is passed to the WFS data store
is ignored when parsing features, resulting in parse failures.
As you can see in the stacktrace we open a datastore/connection
explicitly using a PreventLocalEntityResolver parameter, but the
stacktrace ends with a DefaultEntityResolver (this code path does not
set the default entity resolver hint)`
I have opened https://osgeo-org.atlassian.net/browse/GEOT-7916 for this.
[INFO] Running nl.b3partners.entityresolverissues.WFSGetFeatureUtilTest
14:07:58.678 [main] INFO
nl.b3partners.entityresolverissues.WFSGetFeatureUtil -- DataStore
created for WFS capabilities URL:
https://service.pdok.nl/kadaster/brk-bestuurlijke-gebieden/wfs/v1_0?SERVICE=WFS&VERSION=2.0.0&REQUEST=GetCapabilities
using entity resolver org.geotools.util.PreventLocalEntityResolver@64bba0eb
14:07:58.681 [main] INFO
nl.b3partners.entityresolverissues.WFSGetFeatureUtil -- Found the
following WFS feature types: [bestuurlijkegebieden:Provinciegebied,
bestuurlijkegebieden:Landgebied, bestuurlijkegebieden:Gemeentegebied]
14:08:00.693 [main] INFO
nl.b3partners.entityresolverissues.WFSGetFeatureUtil -- Geometry
attribute for type bestuurlijkegebieden:Provinciegebied:
GeometryDescriptorImpl geom <geom:Geometry> nillable 0:1
Jun 29, 2026 2:08:03 PM org.geotools.xsd.impl.ParserHandler loadSchemas
WARNING: Error loading schema for namespace:
http://bestuurlijkegebieden.geonovum.nl at location:
https://service.pdok.nl/kadaster/brk-bestuurlijke-gebieden/wfs/v1_0?SERVICE=WFS&VERSION=2.0.0&REQUEST=DescribeFeatureType&TYPENAME=bestuurlijkegebieden:Provinciegebied&OUTPUTFORMAT=application%2Fgml%2Bxml%3B%20version%3D3.2
java.io.IOException: org.xml.sax.SAXException: Entity resolution
disallowed for
https://service.pdok.nl/kadaster/brk-bestuurlijke-gebieden/wfs/v1_0?SERVICE=WFS&VERSION=2.0.0&REQUEST=DescribeFeatureType&TYPENAME=bestuurlijkegebieden:Provinciegebied&OUTPUTFORMAT=application%2Fgml%2Bxml%3B%20version%3D3.2
at org.geotools.xsd.Schemas.parse(Schemas.java:338)
at org.geotools.xsd.Schemas.parse(Schemas.java:285)
at
org.geotools.xsd.impl.ParserHandler.loadSchemas(ParserHandler.java:592)
at
org.geotools.xsd.impl.ParserHandler.startElement(ParserHandler.java:343)
at org.geotools.xsd.PullParser.parse(PullParser.java:100)
at
org.geotools.data.wfs.internal.parsers.PullParserFeatureReader.parse(PullParserFeatureReader.java:124)
at
org.geotools.data.wfs.internal.parsers.PullParserFeatureReader.parse(PullParserFeatureReader.java:50)
at
org.geotools.data.wfs.WFSFeatureReader.<init>(WFSFeatureReader.java:47)
at
org.geotools.data.wfs.WFSFeatureSource.getReaderInternal(WFSFeatureSource.java:294)
at
org.geotools.data.store.ContentFeatureSource.getReader(ContentFeatureSource.java:622)
at
org.geotools.data.store.ContentFeatureCollection.features(ContentFeatureCollection.java:163)
at
nl.b3partners.entityresolverissues.WFSGetFeatureUtil.getOneFeature(WFSGetFeatureUtil.java:92)
at
nl.b3partners.entityresolverissues.WFSGetFeatureUtilTest.testWFSGetFeatureProvinciegebied(WFSGetFeatureUtilTest.java:36)
...
Caused by: org.xml.sax.SAXException: Entity resolution disallowed for
https://service.pdok.nl/kadaster/brk-bestuurlijke-gebieden/wfs/v1_0?SERVICE=WFS&VERSION=2.0.0&REQUEST=DescribeFeatureType&TYPENAME=bestuurlijkegebieden:Provinciegebied&OUTPUTFORMAT=application%2Fgml%2Bxml%3B%20version%3D3.2
at
org.geotools.util.DefaultEntityResolver.resolveEntity(DefaultEntityResolver.java:151)
at
org.geotools.util.DefaultEntityResolver.resolveEntity(DefaultEntityResolver.java:117)
at org.geotools.xsd.Schemas.parse(Schemas.java:336)
see eg.
https://github.com/Tailormap/entityresolver-issues/actions/runs/28378077747/job/84073008739?pr=1#step:4:265
for a full stack trace;
========== Problem 2 ==========
However, even when the default entity resolver is set to an instance of
PreventLocalEntityResolver through the Hints/GeoTools.init() call the
entity resolution is still disallowed and parsing features fails.
I have opened https://osgeo-org.atlassian.net/browse/GEOT-7922 for this.
2026-06-29T14:08:03.714Z DEBUG 2179 --- [ main]
org.geotools.data.ows : Executed request to URL:
https://snapshot.tailormap.nl/geoserver/wfs?
2026-06-29T14:08:03.715Z DEBUG 2179 --- [ main]
org.geotools.data.wfs : response =
WFSResponse[charset=UTF-8, contentType=application/gml+xml; version=3.2]
2026-06-29T14:08:03.717Z WARN 2179 --- [ main]
org.geotools.xsd.impl : Error loading schema for
namespace: http://tailormap.nl/geodata/postgis/ at location:
https://snapshot.tailormap.nl/geoserver/wfs?service=WFS&version=2.0.0&request=DescribeFeatureType&typeName=postgis%3Abak
java.io.IOException: org.xml.sax.SAXException: Entity resolution
disallowed for
https://snapshot.tailormap.nl/geoserver/wfs?service=WFS&version=2.0.0&request=DescribeFeatureType&typeName=postgis%3Abak
at org.geotools.xsd.Schemas.parse(Schemas.java:338)
~[gt-xsd-core-35.0.jar:na]
at org.geotools.xsd.Schemas.parse(Schemas.java:285)
~[gt-xsd-core-35.0.jar:na]
at
org.geotools.xsd.impl.ParserHandler.loadSchemas(ParserHandler.java:592)
~[gt-xsd-core-35.0.jar:na]
at
org.geotools.xsd.impl.ParserHandler.startElement(ParserHandler.java:343)
~[gt-xsd-core-35.0.jar:na]
at org.geotools.xsd.PullParser.parse(PullParser.java:100)
~[gt-xsd-core-35.0.jar:na]
at
org.geotools.data.wfs.internal.parsers.PullParserFeatureReader.parse(PullParserFeatureReader.java:124)
~[gt-wfs-ng-35.0.jar:na]
at
org.geotools.data.wfs.internal.parsers.PullParserFeatureReader.parse(PullParserFeatureReader.java:50)
~[gt-wfs-ng-35.0.jar:na]
at
org.geotools.data.wfs.WFSFeatureReader.<init>(WFSFeatureReader.java:47)
~[gt-wfs-ng-35.0.jar:na]
at
org.geotools.data.wfs.WFSFeatureSource.getReaderInternal(WFSFeatureSource.java:294)
~[gt-wfs-ng-35.0.jar:na]
at
org.geotools.data.wfs.WFSFeatureStore.getReaderInternal(WFSFeatureStore.java:150)
~[gt-wfs-ng-35.0.jar:na]
at
org.geotools.data.store.ContentFeatureSource.getReader(ContentFeatureSource.java:622)
~[gt-main-35.0.jar:na]
at
org.geotools.data.store.ContentFeatureCollection.features(ContentFeatureCollection.java:163)
~[gt-main-35.0.jar:na]
at
nl.b3partners.entityresolverissues.WFSGetFeatureUtil.getOneFeature(WFSGetFeatureUtil.java:92)
~[classes/:na]
...
Caused by: org.xml.sax.SAXException: Entity resolution disallowed for
https://snapshot.tailormap.nl/geoserver/wfs?service=WFS&version=2.0.0&request=DescribeFeatureType&typeName=postgis%3Abak
at
org.geotools.util.PreventLocalEntityResolver.resolveEntity(PreventLocalEntityResolver.java:123)
~[gt-metadata-35.0.jar:na]
at
org.geotools.util.PreventLocalEntityResolver.resolveEntity(PreventLocalEntityResolver.java:85)
~[gt-metadata-35.0.jar:na]
at org.geotools.xsd.Schemas.parse(Schemas.java:336)
~[gt-xsd-core-35.0.jar:na]
... 128 common frames omitted
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