[logback-user] CopyOnInheritThreadLocal NullPointerException with 0.9.10

[Gianni Doe]

Just tried 0.9.10 with slf4j 1.5.5 and I get the following exception,  
reverting to 0.9.9 + slf4j 1.5.5 it works fine.

Not quite sure what's happening here but if there's any extra info I  
can provide...

Caused by: java.lang.NullPointerException
	at java.util.HashMap.<init>(HashMap.java:223)
	at  
org 
..slf4j 
..impl 
..CopyOnInheritThreadLocal.childValue(CopyOnInheritThreadLocal.java:20)
	at  
org 
..slf4j 
..impl 
..CopyOnInheritThreadLocal.childValue(CopyOnInheritThreadLocal.java:11)
	at java.lang.ThreadLocal$ThreadLocalMap.<init>(ThreadLocal.java:334)
	at java.lang.ThreadLocal$ThreadLocalMap.<init>(ThreadLocal.java:242)
	at java.lang.ThreadLocal.createInheritedMap(ThreadLocal.java:217)
	at java.lang.Thread.init(Thread.java:358)
	at java.lang.Thread.<init>(Thread.java:419)
	at net.sf.ehcache.distribution.MulticastKeepaliveHeartbeatReceiver 
$ 
MulticastReceiverThread 
..<init>(MulticastKeepaliveHeartbeatReceiver.java:103)
	at  
net 
..sf 
..ehcache 
..distribution 
..MulticastKeepaliveHeartbeatReceiver 
..init(MulticastKeepaliveHeartbeatReceiver.java:79)
	at  
net 
..sf 
..ehcache 
..distribution 
..MulticastRMICacheManagerPeerProvider 
..init(MulticastRMICacheManagerPeerProvider.java:89)
	at net.sf.ehcache.CacheManager.init(CacheManager.java:228)
	at net.sf.ehcache.CacheManager.<init>(CacheManager.java:212)
	at net.sf.ehcache.CacheManager.create(CacheManager.java:381)
	at  
net 
..sf 
..ehcache 
..hibernate 
..SingletonEhCacheProvider.start(SingletonEhCacheProvider.java:123)
	at  
org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java: 
183)
	at  
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java: 
1300)
	at  
org 
..hibernate 
..cfg 
..AnnotationConfiguration 
..buildSessionFactory(AnnotationConfiguration.java:859)
	at  
org 
..hibernate 
..ejb 
..Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)
	at  
org 
..hibernate 
..ejb 
..HibernatePersistence 
..createContainerEntityManagerFactory(HibernatePersistence.java:132)
	at  
org 
..springframework 
..orm 
..jpa 
..LocalContainerEntityManagerFactoryBean 
..createNativeEntityManagerFactory 
(LocalContainerEntityManagerFactoryBean.java:224)
	at  
org 
..springframework 
..orm 
..jpa 
..AbstractEntityManagerFactoryBean 
..afterPropertiesSet(AbstractEntityManagerFactoryBean.java:291)
	at  
org 
..springframework 
..beans 
..factory 
..support 
..AbstractAutowireCapableBeanFactory 
..invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1369)
	at  
org 
..springframework 
..beans 
..factory 
..support 
..AbstractAutowireCapableBeanFactory 
..initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
	... 64 more