After I updated GeoServer I observed that some layers are not rendered -
GetMap requests returned java.lang.NullPointerException (in response as
XML). Note: I have copied data_dir and told the new GeoServer to look at the
copy.
In the logs I saw:
/ERROR [geoserver.ows] -
java.lang.NullPointerException
at
org.geoserver.wms.map.GetMapKvpRequestReader.getDefaultStyle(GetMapKvpRequestReader.java:635)
at
org.geoserver.wms.map.GetMapKvpRequestReader.read(GetMapKvpRequestReader.java:446)/
Then I checked the source code and found that exception occurs here:
/private Style getDefaultStyle (LayerInfo layer) throws IOException{
if (layer.getResource() instanceof WMSLayerInfo) {
// NamedStyle is a subclass of Style -> we use it as a way to
convey
// cascaded WMS layer styles
NamedStyle namedStyle =
CommonFactoryFinder.getStyleFactory(null)
.createNamedStyle();
namedStyle.setName(null);
return namedStyle;
} else {
StyleInfo defaultStyle = layer.getDefaultStyle();
*return defaultStyle.getStyle();*
}
}/
Then I went to GeoServer web > Layers > selected bad layer > Publishing tab
> and saw that in fact "Default Style" property was not set. I enabled
verbose logging, did same actions and I saw this in the logs:
/15 Kov 10:17:01 DEBUG [security.IncludeQueryStringAntPathRequestMatcher] -
Checking match of request : 'Path:
/web/wicket/bookmarkable/org.geoserver.web.data.resource.resourceconfigurationpage,
QueryString: name=ORT16_JPEG_50&wsName=NMA_GIS2'; against '/web/**'
15 Kov 10:17:01 DEBUG [security.IncludeQueryStringAntPathRequestMatcher] -
Matched Path:
/web/wicket/bookmarkable/org.geoserver.web.data.resource.resourceconfigurationpage,
QueryString: name=ORT16_JPEG_50&wsName=NMA_GIS2 with /web/**
15 Kov 10:17:01 DEBUG [geoserver.ows] - Could not a layer group named web
15 Kov 10:17:01 TRACE [ows.OWSHandlerMapping] - No handler mapping found for
[/web/wicket/bookmarkable/org.geoserver.web.data.resource.ResourceConfigurationPage]
15 Kov 10:17:01 DEBUG [geoserver.ows] - Could not a layer group named web
15 Kov 10:17:01 TRACE [ows.OWSHandlerMapping] - No handler mapping found for
[/web/wicket/bookmarkable/org.geoserver.web.data.resource.ResourceConfigurationPage]
15 Kov 10:17:01 DEBUG [org.geoserver] - Thread 102 locking in mode READ
15 Kov 10:17:01 DEBUG [org.geoserver] - Thread 102 got the lock in mode READ
15 Kov 10:17:01 DEBUG [org.geoserver] - Thread 102 locking in mode READ
15 Kov 10:17:01 DEBUG [org.geoserver] - Thread 102 releasing the lock in
mode READ
15 Kov 10:17:01 ERROR [java.JavaSerializer] - Error serializing object class
org.geoserver.web.data.resource.ResourceConfigurationPage [object=[Page
class = org.geoserver.web.data.resource.ResourceConfigurationPage, id = 27,
render count = 1]]
org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream$ObjectCheckException:
The object type is not Serializable!
A problem occurred while checking object with type:
org.geoserver.catalog.impl.ResolvingProxy
Field hierarchy is:
27 [class=org.geoserver.web.data.resource.ResourceConfigurationPage,
path=27]
private java.lang.Object org.apache.wicket.MarkupContainer.children
[class=java.util.ArrayList]
java.lang.Object org.apache.wicket.Component.data[write:90][write:91]
[class=org.apache.wicket.markup.html.form.Form, path=27:publishedinfo]
java.lang.Object org.apache.wicket.Component.data
[class=org.apache.wicket.model.CompoundPropertyModel]
private java.lang.Object
org.apache.wicket.model.ChainingModel.target
[class=org.apache.wicket.model.Model]
private java.io.Serializable
org.apache.wicket.model.Model.object [class=com.sun.proxy.$Proxy58]
protected java.lang.reflect.InvocationHandler
java.lang.reflect.Proxy.h
[class=org.geoserver.catalog.impl.ModificationProxy]
java.lang.Object
org.geoserver.catalog.impl.ModificationProxy.proxyObject
[class=org.geoserver.catalog.impl.LayerInfoImpl]
protected org.geoserver.catalog.StyleInfo
org.geoserver.catalog.impl.LayerInfoImpl.defaultStyle
[class=com.sun.proxy.$Proxy51]
protected java.lang.reflect.InvocationHandler
java.lang.reflect.Proxy.h [class=org.geoserver.catalog.impl.ResolvingProxy]
<----- field that is causing the problem
at
org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.internalCheck(CheckingObjectOutputStream.java:358)
at
org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.check(CheckingObjectOutputStream.java:341)
...
...
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.NotSerializableException:
org.geoserver.catalog.impl.ResolvingProxy
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
...
.../
--
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