Chain fails to run after conversion

2010-09-13 11:29:27,076 ERROR [BAM::Events:pool-1-thread-5] [ChainExecutionManagerImpl] Chain 'BPLUG-BFIND' could not be started
java.lang.NullPointerException
	at com.atlassian.bamboo.chains.ChainResultManagerImpl$1.call(ChainResultManagerImpl.java:78)
	at com.atlassian.bamboo.chains.ChainResultManagerImpl$1.call(ChainResultManagerImpl.java:66)
	at com.atlassian.bamboo.build.LimitedConcurrencyCallerImpl.execute(LimitedConcurrencyCallerImpl.java:22)
	at com.atlassian.bamboo.chains.ChainResultManagerImpl.create(ChainResultManagerImpl.java:65)
	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:304)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at com.atlassian.bamboo.author.AuthorCreatorServiceInterceptor.invoke(AuthorCreatorServiceInterceptor.java:45)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	at $Proxy44.create(Unknown Source)
	at com.atlassian.bamboo.chains.ChainExecutionManagerImpl.createChainState(ChainExecutionManagerImpl.java:141)
	at com.atlassian.bamboo.chains.ChainExecutionManagerImpl.start(ChainExecutionManagerImpl.java:93)
	at sun.reflect.GeneratedMethodAccessor226.invoke(Unknown Source)
	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:304)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:198)
	at $Proxy45.start(Unknown Source)
	at com.atlassian.bamboo.plan.PlanExecutionManagerImpl.startWithLockTaken(PlanExecutionManagerImpl.java:163)
	at com.atlassian.bamboo.plan.PlanExecutionManagerImpl.access$000(PlanExecutionManagerImpl.java:38)
	at com.atlassian.bamboo.plan.PlanExecutionManagerImpl$2.call(PlanExecutionManagerImpl.java:144)
	at com.atlassian.bamboo.plan.PlanExecutionManagerImpl.doWithProcessLock(PlanExecutionManagerImpl.java:298)
	at com.atlassian.bamboo.plan.PlanExecutionManagerImpl.start(PlanExecutionManagerImpl.java:139)
	at com.atlassian.bamboo.v2.build.trigger.DefaultDependencyBlockingManager.executeBuild(DefaultDependencyBlockingManager.java:177)
	at com.atlassian.bamboo.v2.build.trigger.DefaultDependencyBlockingManager.isBlockedFromBuilding(DefaultDependencyBlockingManager.java:85)
	at com.atlassian.bamboo.v2.build.trigger.DefaultDependencyBlockingManager.isBlockedFromBuilding(DefaultDependencyBlockingManager.java:59)
	at com.atlassian.bamboo.v2.trigger.ChangeDetectionListenerAction.process(ChangeDetectionListenerAction.java:85)
	at com.atlassian.bamboo.chains.ChainExecutionManagerImpl.createChainState(ChainExecutionManagerImpl.java:136)
	at com.atlassian.bamboo.chains.ChainExecutionManagerImpl.start(ChainExecutionManagerImpl.java:93)
	at sun.reflect.GeneratedMethodAccessor226.invoke(Unknown Source)
	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:304)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:198)
	at $Proxy45.start(Unknown Source)
	at com.atlassian.bamboo.plan.PlanExecutionManagerImpl.startWithLockTaken(PlanExecutionManagerImpl.java:163)
	at com.atlassian.bamboo.plan.PlanExecutionManagerImpl.access$000(PlanExecutionManagerImpl.java:38)
	at com.atlassian.bamboo.plan.PlanExecutionManagerImpl$2.call(PlanExecutionManagerImpl.java:144)
	at com.atlassian.bamboo.plan.PlanExecutionManagerImpl.doWithProcessLock(PlanExecutionManagerImpl.java:298)
	at com.atlassian.bamboo.plan.PlanExecutionManagerImpl.start(PlanExecutionManagerImpl.java:139)
	at com.atlassian.bamboo.v2.trigger.ChangeDetectionListener.handleEvent(ChangeDetectionListener.java:50)
	at com.atlassian.bamboo.event.BambooEventManager$2.run(BambooEventManager.java:66)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at com.atlassian.bamboo.build.pipeline.concurrent.NamedThreadFactory$2.run(NamedThreadFactory.java:47)
	at java.lang.Thread.run(Thread.java:637)