I updated my xwiki to Version 8.2.1. After that I get an StackOverflowError everytime I try to upload a XAR. Does anyone have any idea where this comes from?
14:39:05.955 [https://localhost/ xwiki /bin/get/XWiki/XWikiPreferences?xpage=packagedescriptor&package=org.xwiki.platform_xwiki-platform-administration-ui-8.2.1.xar] ERROR org.xwiki.velocity.tools.JSONTool - Failed to serialize object to JSON
com.fasterxml.jackson.databind.JsonMappingException: Infinite recursion (StackOverflowError) (through reference chain: java.util.UnmodifiableList[0]->org.xwiki.model.reference.EntityReference["reversedReferenceChain"]->java.util.UnmodifiableList[0]->org.xwiki.model.reference.EntityReference["reversedReferenceChain"]->java.util.UnmodifiableList[0]->org.xwiki.model.reference.EntityReference["reversedReferenceChain"]->java.util.UnmodifiableList[0]->org.xwiki.model.reference.EntityReference["reversedReferenceChain"]->java.util.UnmodifiableList[0]->org.xwiki.model.reference.EntityReference["reversedReferenceChain"]->java.util.UnmodifiableList[0]->org.xwiki.model.reference.EntityReference["reversedReferenceChain"]->[…])
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:677) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:156) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:132) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:94) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:24) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:575) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:663) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:156) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:132) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:94) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:24) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:575) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:663) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:156) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:132) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:94) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:24) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:575) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:663) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:156) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:132) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:94) ~[jackson-databind-2.5.0.jar:2.5.0]
at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:24) ~[jackson-databind-2.5.0.jar:2.5.0]
[…]
14:39:05.968 [https://localhost/xwiki/bin/get/XWiki/XWikiPreferences?xpage=packagedescriptor&package=org.xwiki.platform_xwiki-platform-administration-ui-8.2.1.xar] DEBUG o.x.v.internal.DefaultVelocityEngine - Null reference [template '76:/templates/packagedescriptor.vm', line 36, column 4] : $jsontool.serialize($json) cannot be resolved.
This error seems to suggest that you have a version of Jackson older than the one which is supposed to be provided in XWiki WAR. One that does not support #Transient which is used to skip serialization of EntityReference#getReversedReferenceChain().
Maybe your application server bring an older version of Jackson and you need to isolate XWiki properly.
Related
Does any one can help me generate this ObjectPropertyRange using "The OWL API"??
<ObjectPropertyRange>
<Annotation>
<AnnotationProperty abbreviatedIRI="owl:backwardCompatibleWith"/>
<IRI>#ProgramLanguage</IRI>
</Annotation>
<ObjectProperty IRI="#specifiedBy"/>
<ObjectMaxCardinality cardinality="1">
<ObjectProperty IRI="#specifiedBy"/>
<Class IRI="#Grammars"/>
</ObjectMaxCardinality>
</ObjectPropertyRange>
This is how i got in the last 3 days....
<ObjectPropertyRange>
<ObjectProperty IRI="#has"/>
<ObjectMaxCardinality cardinality="1">
<ObjectProperty IRI="#has"/>
<Class IRI="#Quantity"/>
</ObjectMaxCardinality>
</ObjectPropertyRange>
From this code...
OWLClassExpression expression=df.getOWLObjectMaxCardinality(relations.max, objectProperty,range.getNNF());
OWLSubClassOfAxiom subClassOfAxiom=df.getOWLSubClassOfAxiom(df.getOWLClass(IRI.create(relations.class2)), expression);
OWLObjectPropertyRangeAxiom owlObjectPropertyRangeAxiom=df.getOWLObjectPropertyRangeAxiom(objectProperty,subClassOfAxiom.getSuperClass());
manager.addAxiom(new_ontology,owlObjectPropertyRangeAxiom);
To give a complete code snippet:
OWLDataFactory df = ...
OWLAnnotationProperty p=df.getOWLAnnotationProperty(IRI.create("urn:test#backwardCompatibleWith"));
OWLAnnotation ann=df.getOWLAnnotation(p, IRI.create("urn:test#languageDesign"));
OWLObjectProperty op=df.getOWLObjectProperty(IRI.create("urn:test#produces"));
OWLClass c = df.getOWLClass(IRI.create("urn:test#ProgramLanguage"));
OWLObjectPropertyRangeAxiom axiom=df.getOWLObjectPropertyRangeAxiom(op, c, Collections.singleton(ann));
At this point, add the axiom to your ontology and save in the preferred format. From the example, I'm guessing that's OWL/XML.
The question and this answer are available at https://github.com/owlcs/owlapi/issues/235 for further comments, discussions and any other activity that does not fit in StackOverflow format.
Regarding the mention of unsupported operations when adding annotations, note that all objects created by an OWLDataFactory are immutable. Annotations must be added when creating the objects, they cannot be added afterwards to already existing objects.
I have a solution that was created with NHib 1.2 which we're upgrading to NHib 3.0.
Our hbm file has the following property:
<property name="ContentId" column="ContentId" access="field.camelcase-underscore" />
The class doesn't have a ContentId property. This was working fine in NHib 1.2 but now we're getting getting the following exception:
Could not compile the mapping document: XXXX.Core.Domain.Video.hbm.xml ---> NHibernate.MappingException: Problem trying to set property type by reflection ---> NHibernate.MappingException: class Core.Domain.Video, Core, Version=1.0.0.29283, Culture=neutral, PublicKeyToken=null not found while looking for property: ContentId ---> NHibernate.PropertyNotFoundException: Could not find the property 'ContentId', associated to the field '_contentId', in class 'Core.Domain.Video'.
Why would this stop working? Is it still supported in NHib 3?
We have many many properties like this that we might need to add.
NHibernate greatly improved its error messaging and diagnostics in NH2.X and again in NH3.X. You are telling NHibernate that you have a property and you want to map it via field access to a field named by _camelCase convention. You don't have a property named ContentId and NHibernate is letting you know that you lied to it. :)
Try updating your mapping to:
<property name="_contentId" column="ContentId" access="field" />
You will need to update any HQL or Criteria queries to use _contentId rather than ContentId. Another option would be to add a private ContentId property.
I'd like to provide information which helped me answer this question:
http://groups.google.com/group/nhusers/browse_thread/thread/e078734a221c3c0c/ec8b873b385d4426?lnk=gst&q=field+camelcase+underscore#ec8b873b385d4426
In this link Fabio explains the same problem you are having like this:
This mapping
<property name="PositiveValue" access="field.camelcase-underscore" />
mean: For my property named "PositiveValue" you (NH) have to access to
the field; to discover which is the associated field you (NH) have to
use the strategy "camelcase-underscore".
If there is no property you can't use the accessor with a specific
strategy.
Which struck me as a little odd because it meant adding dummy, unused properties, just to make the nhibernate3 compiler happy. The underlying functionality is the same.
Should a lazy loaded collection in NHibernate ever give me a NullReferenceException? I'm getting an exception in a method like the following:
public void Test(ISession session, int id)
{
var entity = session.Load<MyEntity>(id);
entity.LazyLoadedCollection.Add(SomeItem);
}
The call to LazyLoadedCollection is throwing. My mapping looks like:
<bag lazy="true" table="MyTable">
<key>
<column name="LazyLoadedCollection" />
</key>
<many-to-many class="LazyLoadedItem">
<column name="LazyLoadedItemId" />
</many-to-many>
</bag>
Is this the expected behavior in NHibernate?
It's hard to say without seeing your class, but one thing you may not have realized is that you need to populate each collection in your class's constructor.
NHibernate will replace these collections with its own at certain times, but you still need to make sure they're initially populated with a HashedSet<T>, List<T>, or something else depending on the interface you're using.
No it's not. This is a not a good way to ask a question on the internet.
And it's really impossible to give you a direction what to do if you don't post the code throwing the exception and tell us where the exception comes from.
I've asked this elsewhere and not got any sensible reply
I'm trying to map an IDictionary. I have this mapping:
<class name="MyProject.Item, MyProject" table="Item">
<...>
<map name="Properties" access="property" table="ItemProperties" lazy="false">
<key column="ItemID" />
<index column="Idx" type="int" />
<element column="Value" type="System.Boolean, mscorlib"/>
</map>
I can persist data, but when the data is retrieved I get an nHibernate exception:
{"The value "0" is not of type "Project.PropertyType" and cannot be used in this generic collection. Parameter name: key"}
So it can't map to the enum, but why ? if I have a regular property that uses an enum, it works fine.
Is what I'm trying to do even possible ? I can't find much info on doing this.
Your mapping shows the key as an integer, not as an enum. To map the enum properly, use type="MyProject.Project.PropertyType, MyProject".
However, normally for an enum the best approach is to leave the type information out of the mapping file altogether and let NHib pick it up through reflection. My reading of the NHib source implies that if you are mapping into a generic IDictionary<K,V> then NHib should pick up the exact type of your key via reflection. IOW you still should be able to leave out the type attribute.
I've been trying to work out how to connect to an ESRI shape file (which I think is a DBase table file) through NHibernate but haven't had any luck with anything I've tried.
Currently, my config's looking like this:
<property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
<!--<property name="dialect">NHibernate.Dialect.GenericDialect</property>
<property name="connection.driver_class">NHibernate.Driver.OdbcDriver</property>
<property name="connection.connection_string">Database=A303.dbf;protocol=TCPIP</property>-->
<property name="connection.driver_class">NHibernate.Driver.OdbcDriver</property>
<!--<property name="connection.connection_string">driver={IBM DB2 ODBC DRIVER};Database=a303.dbf;protocol=TCPIP</property>-->
<property name="connection.connection_string">Provider=VFPOLEDB.1; Data Source=C:\projects\rm4\Sandbox\bin\Debug\A303.dbf;Extended Properties=dBase III</property>
<property name="dialect">NHibernate.Dialect.DB2Dialect</property>
<property name="use_outer_join">true</property>
<property name="proxyfactory.factory_class">NHibernate.ByteCode.Castle.ProxyFactoryFactory, NHibernate.ByteCode.Castle</property>
<property name="show_sql">true</property>
I've left the commented out bits in so you can see what values I've been trying. No matter what I try, I get the error message:
ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
I've gone through most of the connection string I've found online and in some answers to questions on here was getting to the 'clutching at straws' phase where I'm just putting anything in so thought I'd better ask for help.
I'm not even sure if it's possible to connect to this type of file from NHibernate but, if it is, does anyone know what should be in the config?
A Shapefile (.shp) is not a dbf, per se. It actually is a collection of files, one of which is a DBF, but the shapefile itself that stores the geometry is a different format altogether.
There is a whitepaper on the ESRI website (www.esri.com)
I would try a different NHibernate driver. Here is a list of NHibernate drivers from the documentation.
Judging from the provider name in your connection string, I would try NHibernate.Driver.OleDbDriver.
Failing this, I would eliminate NHibernate from the mix and see if you can connect using the standard .NET data classes, such as System.Data.Odbc.OdbcConnection and System.Data.OleDb.OleDbConnection. If you cannot connect at this level, then the problem is not NHibernate.