The default template packages are not available

2010-10-07 13:00:52,280 WARN [http-8080-6] [opensymphony.xwork.util.OgnlValueStack] findValue Caught an exception while evaluating expression 'availableTemplates' against value stack
 -- referer: http://tuatara.sydney.atlassian.com:8080/confluence/pages/templates/listpagetemplates.action | url: /confluence/admin/plugins/templatePackage/configurePlugin.action | userName: admin | action: configurePlugin
java.lang.RuntimeException: Caught an Ognl exception while getting property availableTemplates
	at com.opensymphony.xwork.util.CompoundRootAccessor.getProperty(CompoundRootAccessor.java:112)
	at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1603)
	at ognl.ASTProperty.getValueBody(ASTProperty.java:96)
	at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:171)
	at ognl.SimpleNode.getValue(SimpleNode.java:193)
	at ognl.Ognl.getValue(Ognl.java:333)
	at ognl.Ognl.getValue(Ognl.java:310)
	at com.opensymphony.xwork.util.OgnlValueStack.findValue(OgnlValueStack.java:141)
	at com.opensymphony.webwork.views.velocity.WebWorkVelocityContext.internalGet(WebWorkVelocityContext.java:72)
	at org.apache.velocity.context.AbstractContext.get(AbstractContext.java:193)
	at org.apache.velocity.context.InternalContextAdapterImpl.get(InternalContextAdapterImpl.java:286)
	at org.apache.velocity.runtime.parser.node.ASTReference.getVariableValue(ASTReference.java:823)
	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:212)
	at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:487)
	at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:280)
	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:106)

java.lang.ClassCastException: com.sun.xml.bind.v2.runtime.JAXBContextImpl cannot be cast to javax.xml.bind.JAXBContext
	at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:150)
	at javax.xml.bind.ContextFinder.find(ContextFinder.java:286)
	at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:372)
	at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:337)
	at com.atlassian.confluence.plugin.templates.packages.DefaultTemplatesPackage.getAvailableTemplates(DefaultTemplatesPackage.java:26)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
	at org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:58)
	at org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:62)