[Build 135] Walk Forward Optimzation is failing when reading a null periods.get(0).runStatData

The Walk Forward Optimzation is failing when reading a null periods.get(0).runStatData.


maxDD = periods.isEmpty() ? 0 : periods.get(0).runStatData.getDouble(StatsKey.DRAWDOWN);



The Code Fix is to check if the runStatData is not null before reading the value. I've done the fixes but SQX is overwriting the code to the original version.


double maxDD = 0;

if (periods.get(0).runStatData != null)
maxDD = periods.isEmpty() ? 0 : periods.get(0).runStatData.getDouble(StatsKey.DRAWDOWN);




I've attached the fixes for all Walk Forward data columns. Could you please apply this to 


Log


10:05:47.364 [Thread-7515] INFO  c.s.t.project.ProgressEngine - Pre-Validation : Strategy 4.3.193 Error Cannot invoke "com.strategyquant.tradinglib.SQStats.getDouble(String)" because "java.util.ArrayList.get(int).runStatData" is null
10:05:47.365 [Thread-7515] ERROR OptimizeTask - Optimization error in strategy Strategy 4.3.193
java.lang.NullPointerException: Cannot invoke "com.strategyquant.tradinglib.SQStats.getDouble(String)" because "java.util.ArrayList.get(int).runStatData" is null
at SQ.Columns.WalkForward.WFMaxDDbyRun.compute(WFMaxDDbyRun.java:19) ~[na:na]
at com.strategyquant.tradinglib.WalkForwardColumn.compute(Unknown Source) ~[SQTradingLib.jar:na]
at com.strategyquant.tradinglib.WalkForwardResult.computeStats(Unknown Source) ~[SQTradingLib.jar:na]
at com.strategyquant.tradinglib.WalkForwardResult.computeRobustnessScore(Unknown Source) ~[SQTradingLib.jar:na]
at com.strategyquant.tradinglib.optimization.WalkForwardMatrixResult.computeRobustnessResults(Unknown Source) ~[SQTradingLib.jar:na]
at com.strategyquant.tradinglib.optimization.OptimizationEngineWF.optimizeWF(Unknown Source) ~[SQTradingLib.jar:na]
at com.strategyquant.tradinglib.optimization.OptimizationEngine.optimize(Unknown Source) ~[SQTradingLib.jar:na]
at com.strategyquant.plugin.Task.impl.Optimize.OptimizeTask.runStandardOptimization(Unknown Source) ~[na:na]
at com.strategyquant.plugin.Task.impl.Optimize.OptimizeTask.optimizeStrategy(Unknown Source) ~[na:na]
at com.strategyquant.plugin.Task.impl.Optimize.OptimizeTask.start(Unknown Source) ~[na:na]
at com.strategyquant.tradinglib.project.SQProject$1.run(Unknown Source) ~[SQTradingLib.jar:na]