I wrote a tiny bit of code intending to experiment with starting up an
ActiveMQ instance inside a web application (with the intention of eventually
using an "in the VM" configuration). I'm using ActiveMQ version 5.3.0, and
Java 1.6.0_17.
To start with, I simply tried to start an instance programmatically:
===================
String uri = "xbean:file:/java/apache-activemq-5.3.0/conf/activemq.xml";
try
{
BrokerService service = BrokerFactory.createBroker(uri);
service.start();
Thread.sleep(5*1000L);
service.stop();
service.waitUntilStopped();
}
catch(Exception e)
{
e.printStackTrace();
}
===================
The path string above is pointing to the "activemq.xml" that came with the
distribution - I haven't altered that file in any way. (I understand that
it has references in it to ${activemq.base} that won't resolve correctly,
under this method, but that isn't the problem I'm facing.
What happens is that the "createBroker" line above throws an exception:
===================
org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line
70 in XML document from URL
[file:/java/apache-activemq-5.3.0/conf/activemq.xml] is invalid; nested
exception is org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: Invalid
content was found starting with element 'destinationPolicy'. One of
'{"http://activemq.apache.org/schema/core":persistenceFactory,
"http://activemq.apache.org/schema/core":persistenceTaskRunnerFactory,
"http://activemq.apache.org/schema/core":plugins,
"http://activemq.apache.org/schema/core":producerSystemUsage,
"http://activemq.apache.org/schema/core":proxyConnectors,
"http://activemq.apache.org/schema/core":regionBroker,
"http://activemq.apache.org/schema/core":services,
"http://activemq.apache.org/schema/core":sslContext,
"http://activemq.apache.org/schema/core":systemUsage,
"http://activemq.apache.org/schema/core":taskRunnerFactory,
"http://activemq.apache.org/schema/core":tempDataStore,
"http://activemq.apache.org/schema/core":transportConnectorURIs,
"http://activemq.apache.org/schema/core":transportConnectors,
WC[##other:"http://activemq.apache.org/schema/core"]}' is expected.
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:396)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.loadBeanDefinitions(ResourceXmlApplicationContext.java:111)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.loadBeanDefinitions(ResourceXmlApplicationContext.java:104)
at
org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130)
at
org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:458)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:388)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:64)
at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:52)
at
org.apache.activemq.xbean.XBeanBrokerFactory.createApplicationContext(XBeanBrokerFactory.java:96)
at
org.apache.activemq.xbean.XBeanBrokerFactory.createBroker(XBeanBrokerFactory.java:52)
at
org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:71)
at
org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:54)
at
org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:85)
at test.BrokerRunner.main(BrokerRunner.java:14)
Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: Invalid
content was found starting with element 'destinationPolicy'. One of
'{"http://activemq.apache.org/schema/core":persistenceFactory,
"http://activemq.apache.org/schema/core":persistenceTaskRunnerFactory,
"http://activemq.apache.org/schema/core":plugins,
"http://activemq.apache.org/schema/core":producerSystemUsage,
"http://activemq.apache.org/schema/core":proxyConnectors,
"http://activemq.apache.org/schema/core":regionBroker,
"http://activemq.apache.org/schema/core":services,
"http://activemq.apache.org/schema/core":sslContext,
"http://activemq.apache.org/schema/core":systemUsage,
"http://activemq.apache.org/schema/core":taskRunnerFactory,
"http://activemq.apache.org/schema/core":tempDataStore,
"http://activemq.apache.org/schema/core":transportConnectorURIs,
"http://activemq.apache.org/schema/core":transportConnectors,
WC[##other:"http://activemq.apache.org/schema/core"]}' is expected.
at
com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)
at
com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:131)
at
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:384)
at
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:318)
at
com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(XMLSchemaValidator.java:410)
at
com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.reportSchemaError(XMLSchemaValidator.java:3165)
at
com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:1777)
at
com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startElement(XMLSchemaValidator.java:685)
at
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:400)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2747)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
at
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:807)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:107)
at
com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:225)
at
com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:283)
at
org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:75)
at
org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:388)
... 15 more
===================
As I read this, the XML parser is objecting to the "destinationPolicy" tag
that it's finding on line 70 of the activemq.xml file. What is confusing me
is why this file, which came with the distribution, and which obviously
works if I invoke ActiveMQ from the command line, should be exhibiting this
behavior when I try to use it to create a Broker manually. Am I attempting
to load the XML file in an incorrect manner?
Any help would be greatly appreciated.
Kevin Hunter
--
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