On Oracle (but seen on HSQL too):
2009-07-20 16:27:18,357 ERROR [main] [UpgradeManagerImpl] org.springframework.dao.IncorrectResultSizeDataAccessException: query did not return a unique result: 2
org.springframework.dao.IncorrectResultSizeDataAccessException: query did not return a unique result: 2
at org.springframework.orm.hibernate.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:590)
at org.springframework.orm.hibernate.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:353)
at org.springframework.orm.hibernate.HibernateTemplate.execute(HibernateTemplate.java:375)
at org.springframework.orm.hibernate.HibernateTemplate.execute(HibernateTemplate.java:337)
at com.atlassian.bamboo.agent.elastic.server.ElasticImageConfigurationHibernateDao.getShippedWithBamboo(ElasticImageConfigurationHibernateDao.java:128)
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:585)
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 org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy23.getShippedWithBamboo(Unknown Source)
at com.atlassian.bamboo.agent.elastic.server.ElasticImageConfigurationAccessorImpl.getElasticImageConfigurationShippedWithBamboo(ElasticImageConfigurationAccessorImpl.java:48)
at com.atlassian.bamboo.agent.elastic.server.ElasticImageConfigurationManagerImpl.getElasticImageConfigurationShippedWithBamboo(ElasticImageConfigurationManagerImpl.java:57)
at com.atlassian.bamboo.upgrade.tasks.UpgradeTask1310UpdateEBSSnapshot.doUpgrade(UpgradeTask1310UpdateEBSSnapshot.java:60)
at com.atlassian.bamboo.upgrade.UpgradeManagerImpl.runUpgradeTask(UpgradeManagerImpl.java:141)
at com.atlassian.bamboo.upgrade.UpgradeManagerImpl.doUpgrade(UpgradeManagerImpl.java:97)
at com.atlassian.bamboo.upgrade.UpgradeLauncher.upgradeAndStartBamboo(UpgradeLauncher.java:104)
at com.atlassian.bamboo.upgrade.UpgradeLauncher.contextInitialized(UpgradeLauncher.java:37)
at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1239)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:466)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.jetty.Server.doStart(Server.java:222)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at com.atlassian.bamboo.server.Server.main(Server.java:60)
2009-07-20 16:27:18,358 INFO [main] [UpgradeManagerImpl] Completed upgrade task 1310 with errors.