Hi,
I would like to use the Spring integration feature described on the
"springdataNeo4j" page.
My project already uses both Spring and Maven, and I am familiar with how to
set up dependencies and Spring beans. I already have the neo4j server
running on my localhost and I've been able to test it via the browser
interface, so I know that part works.
Unfortunately, despite carefully following the tutorial's instructions, and
carefully examining everything I'm doing including making sure that every
possible dependency is declared correctly, I cannot get Spring to load the
graph database service due to an exception "Invalid NamespaceHandler class".
This is my Spring configuration file:
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:neo4j="http://www.springframework.org/schema/data/neo4j";
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/data/neo4j
http://www.springframework.org/schema/data/neo4j/spring-neo4j-2.0.xsd";>
<neo4j:config graphDatabaseService="graphDatabaseService"/>
<bean id="graphDatabaseService"
class="org.springframework.data.neo4j.rest.SpringRestGraphDatabase">
<constructor-arg value="http://localhost:7474/db/data/"/>
</bean>
</beans>
This is the full stack trace of the exception:
11/30/2011 13:07:34 [INFO] main (XmlBeanDefinitionReader.java:315) - Loading
XML bean definitions from class path resource [neo4j.xml]
org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected
exception parsing XML document from class path resource [neo4j.xml]; nested
exception is org.springframework.beans.FatalBeanException: Invalid
NamespaceHandler class
[org.springframework.data.neo4j.config.DataGraphNamespaceHandler] for
namespace [http://www.springframework.org/schema/data/neo4j]: problem with
handler class file or dependent class; nested exception is
java.lang.NoClassDefFoundError:
org/springframework/beans/factory/xml/NamespaceHandlerSupport
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:412)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
at
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)
at
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)
at
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149)
at
org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:212)
at
org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:126)
at
org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:92)
at
org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130)
at
org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:467)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:397)
at
org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at
org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
at neo4j.Populate.<init>(Populate.java:32)
at neo4j.Populate.main(Populate.java:18)
Caused by: org.springframework.beans.FatalBeanException: Invalid
NamespaceHandler class
[org.springframework.data.neo4j.config.DataGraphNamespaceHandler] for
namespace [http://www.springframework.org/schema/data/neo4j]: problem with
handler class file or dependent class; nested exception is
java.lang.NoClassDefFoundError:
org/springframework/beans/factory/xml/NamespaceHandlerSupport
at
org.springframework.beans.factory.xml.DefaultNamespaceHandlerResolver.resolve(DefaultNamespaceHandlerResolver.java:139)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1333)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1328)
at
org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:135)
at
org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:93)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:493)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390)
... 15 more
Caused by: java.lang.NoClassDefFoundError:
org/springframework/beans/factory/xml/NamespaceHandlerSupport
at java.lang.ClassLoader.findBootstrapClass(Native Method)
at java.lang.ClassLoader.findBootstrapClassOrNull(ClassLoader.java:926)
at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
at java.lang.ClassLoader.loadClass(ClassLoader.java:295)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:257)
at
org.springframework.beans.factory.xml.DefaultNamespaceHandlerResolver.resolve(DefaultNamespaceHandlerResolver.java:124)
... 21 more
My project uses Spring 3.0.6, same version as the tutorial. I was not
originally using all of the dependencies as described in the tutorial, but I
added the missing ones, which did not help.
I also tried putting all the Neo4j jars and the Neo4j Spring integration
jars directly into my project, adding them to my Eclipse classpath and again
to my Eclipse launch command, which had no effect.
Any help would be appreciated, as I am dead in the water at this point.
Thanks.
Frank
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