2015-05-28 10:00:29,884 [ERROR][pool-1-thread-5 ][com.seriousenergy.da.AbstractDataAggregatorBuilder] - CALCULATING_ASSET_ENERGY throws exception unhandled exception:
org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.builder.BuilderException: Error evaluating expression 'rollupMethods.energy_demand.method'. Cause: org.apache.ibatis.ognl.OgnlException: source is null for getProperty(null, "method")
        at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73)
        at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:365)
        at com.sun.proxy.$Proxy13.selectList(Unknown Source)
        at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:195)
        at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:119)
        at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:63)
        at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52)
        at com.sun.proxy.$Proxy41.getChildMeterReadingsByAnyId(Unknown Source)
        at com.seriousenergy.da.processor.AssetEnergyCalculationProcessor.calculate(AssetEnergyCalculationProcessor.java:95)
        at com.seriousenergy.da.processor.AssetEnergyCalculationProcessor.processAssets(AssetEnergyCalculationProcessor.java:73)
        at com.seriousenergy.da.processor.AssetEnergyCalculationProcessor.processAssets(AssetEnergyCalculationProcessor.java:70)
        at com.seriousenergy.da.processor.AssetEnergyCalculationProcessor.processAssets(AssetEnergyCalculationProcessor.java:70)
        at com.seriousenergy.da.processor.AssetEnergyCalculationProcessor.process(AssetEnergyCalculationProcessor.java:56)
        at com.seriousenergy.da.processor.DataAggregatorProcessor.run(DataAggregatorProcessor.java:148)
        at com.seriousenergy.da.DataAggregatorBuilder.executeProcessors(DataAggregatorBuilder.java:89)
        at com.seriousenergy.da.AbstractDataAggregatorBuilder.call(AbstractDataAggregatorBuilder.java:70)
        at com.seriousenergy.da.AbstractDataAggregatorBuilder.call(AbstractDataAggregatorBuilder.java:32)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.ibatis.builder.BuilderException: Error evaluating expression 'rollupMethods.energy_demand.method'. Cause: org.apache.ibatis.ognl.OgnlException: source is null for getProperty(null, "method")
        at org.apache.ibatis.scripting.xmltags.OgnlCache.getValue(OgnlCache.java:47)
        at org.apache.ibatis.scripting.xmltags.TextSqlNode$BindingTokenParser.handleToken(TextSqlNode.java:64)
        at org.apache.ibatis.parsing.GenericTokenParser.parse(GenericTokenParser.java:53)
        at org.apache.ibatis.scripting.xmltags.TextSqlNode.apply(TextSqlNode.java:41)
        at org.apache.ibatis.scripting.xmltags.MixedSqlNode.apply(MixedSqlNode.java:32)
        at org.apache.ibatis.scripting.xmltags.DynamicSqlSource.getBoundSql(DynamicSqlSource.java:40)
        at org.apache.ibatis.mapping.MappedStatement.getBoundSql(MappedStatement.java:278)
        at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:118)
        at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:108)
        at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:102)
        at sun.reflect.GeneratedMethodAccessor32.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:355)
        ... 21 more
Caused by: org.apache.ibatis.ognl.OgnlException: source is null for getProperty(null, "method")
        at org.apache.ibatis.ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1652)
        at org.apache.ibatis.ognl.ASTProperty.getValueBody(ASTProperty.java:92)
        at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
        at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:210)
        at org.apache.ibatis.ognl.ASTChain.getValueBody(ASTChain.java:109)
        at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
        at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:210)
        at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:333)
        at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:310)
        at org.apache.ibatis.scripting.xmltags.OgnlCache.getValue(OgnlCache.java:45)
        ... 34 more
2015-05-28 10:00:29,885 [ERROR][pool-1-thread-5 ][com.seriousenergy.da.AbstractDataAggregatorBuilder] - [org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73), org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:365), com.sun.proxy.$Proxy13.selectList(Unknown Source), org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:195), org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:119), org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:63), org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52), com.sun.proxy.$Proxy41.getChildMeterReadingsByAnyId(Unknown Source), com.seriousenergy.da.processor.AssetEnergyCalculationProcessor.calculate(AssetEnergyCalculationProcessor.java:95), com.seriousenergy.da.processor.AssetEnergyCalculationProcessor.processAssets(AssetEnergyCalculationProcessor.java:73), com.seriousenergy.da.processor.AssetEnergyCalculationProcessor.processAssets(AssetEnergyCalculationProcessor.java:70), com.seriousenergy.da.processor.AssetEnergyCalculationProcessor.processAssets(AssetEnergyCalculationProcessor.java:70), com.seriousenergy.da.processor.AssetEnergyCalculationProcessor.process(AssetEnergyCalculationProcessor.java:56), com.seriousenergy.da.processor.DataAggregatorProcessor.run(DataAggregatorProcessor.java:148), com.seriousenergy.da.DataAggregatorBuilder.executeProcessors(DataAggregatorBuilder.java:89), com.seriousenergy.da.AbstractDataAggregatorBuilder.call(AbstractDataAggregatorBuilder.java:70), com.seriousenergy.da.AbstractDataAggregatorBuilder.call(AbstractDataAggregatorBuilder.java:32), java.util.concurrent.FutureTask.run(FutureTask.java:262), java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471), java.util.concurrent.FutureTask.run(FutureTask.java:262), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615), java.lang.Thread.run(Thread.java:745)]