Classloading fails when server is locked for exporting

2008-04-10 13:03:29,725 WARN [SchedulerThread] [HttpMethodBase:676] Going to buffer response body of large or unknown size. Using getResponseBodyAsStream instead is recommended.
2008-04-10 13:03:29,730 INFO [SchedulerThread] [AgentContext:146] Exiting Bamboo agent...
java.lang.ClassFormatError: Incompatible magic value 1008813135 in class file com/atlassian/bamboo/configuration/SystemInfoBeanInfo
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:465)
	at com.atlassian.bamboo.agent.bootstrap.AgentClassLoader.findClass(AgentClassLoader.java:113)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at com.atlassian.bamboo.agent.bootstrap.AgentClassLoader.loadClass(AgentClassLoader.java:233)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
	at java.beans.Introspector.instantiate(Introspector.java:1431)
	at java.beans.Introspector.findExplicitBeanInfo(Introspector.java:410)
	at java.beans.Introspector.<init>(Introspector.java:359)
	at java.beans.Introspector.getBeanInfo(Introspector.java:159)
	at org.springframework.beans.CachedIntrospectionResults.<init>(CachedIntrospectionResults.java:244)
	at org.springframework.beans.CachedIntrospectionResults.forClass(CachedIntrospectionResults.java:143)
	at org.springframework.beans.BeanWrapperImpl.setIntrospectionClass(BeanWrapperImpl.java:236)
	at org.springframework.beans.BeanWrapperImpl.setWrappedInstance(BeanWrapperImpl.java:194)
	at org.springframework.beans.BeanWrapperImpl.setWrappedInstance(BeanWrapperImpl.java:177)
	at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:188)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:795)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:713)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:386)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:268)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:227)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:227)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByName(AbstractAutowireCapableBeanFactory.java:876)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:824)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:274)
	at com.atlassian.spring.container.SpringContainerContext.autowireComponent(SpringContainerContext.java:102)
	at com.atlassian.spring.container.ContainerManager.autowireComponent(ContainerManager.java:41)
	at com.atlassian.bamboo.quartz.AutowiringJobFactory.newJob(AutowiringJobFactory.java:25)
	at org.quartz.core.JobRunShell.initialize(JobRunShell.java:133)
	at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:353)

Process finished with exit code 1