Dear Dukascopy team,


I'm getting this with latest JForex API version:

Apr 15, 2012 2:58:39 PM com.dukascopy.charts.math.indicators.IndicatorsProvider getIndicatorHolder
SEVERE: null
java.lang.IllegalStateException
at com.dukascopy.charts.data.orders.OrdersProvider.getInstance(OrdersProvider.java:74)
at com.dukascopy.dds2.greed.util.IndicatorHelper.createIndicatorContext(IndicatorHelper.java:30)
at com.dukascopy.dds2.greed.util.IndicatorHelper.createIndicatorContext(IndicatorHelper.java:36)
at com.dukascopy.charts.math.indicators.IndicatorsProvider.getIndicatorHolder(IndicatorsProvider.java:389)
at com.dukascopy.charts.math.indicators.IndicatorsProvider.getIndicatorHolder(IndicatorsProvider.java:364)
at com.dukascopy.charts.math.indicators.IndicatorsProvider.getIndicator(IndicatorsProvider.java:356)
at com.dukascopy.indicators.WaddahAttarTrend.onStart(WaddahAttarTrend.java:35)
at com.dukascopy.charts.math.indicators.IndicatorsProvider.getIndicatorHolder(IndicatorsProvider.java:381)
at com.dukascopy.api.impl.Indicators.getCachedIndicator(Indicators.java:3914)
at com.dukascopy.api.impl.Indicators.calculateIndicator(Indicators.java:3962)
at com.dukascopy.dds2.greed.agent.strategy.tester.TesterIndicators.calculateIndicator(TesterIndicators.java:27)
at com.dukascopy.api.impl.Indicators.waddahAttar(Indicators.java:3808)
at lv.fxproject.strategy.StrategyCountingPipBoostRP.onBar(StrategyCountingPipBoostRP.java:134)
at com.dukascopy.dds2.greed.agent.strategy.tester.AbstractStrategyRunner.historicalCandleReceived(AbstractStrategyRunner.java:656)
at com.dukascopy.dds2.greed.agent.strategy.tester.StrategyRunner.run(StrategyRunner.java:470)
at java.lang.Thread.run(Thread.java:662)
Apr 15, 2012 2:58:39 PM com.dukascopy.dds2.greed.agent.strategy.tester.StrategyRunner handleException
SEVERE: null
java.lang.NullPointerException
at com.dukascopy.indicators.WaddahAttarTrend.onStart(WaddahAttarTrend.java:36)
at com.dukascopy.charts.math.indicators.IndicatorsProvider.getIndicatorHolder(IndicatorsProvider.java:381)
at com.dukascopy.api.impl.Indicators.getCachedIndicator(Indicators.java:3914)
at com.dukascopy.api.impl.Indicators.calculateIndicator(Indicators.java:3962)
at com.dukascopy.dds2.greed.agent.strategy.tester.TesterIndicators.calculateIndicator(TesterIndicators.java:27)
at com.dukascopy.api.impl.Indicators.waddahAttar(Indicators.java:3808)
at lv.fxproject.strategy.StrategyCountingPipBoostRP.onBar(StrategyCountingPipBoostRP.java:134)
at com.dukascopy.dds2.greed.agent.strategy.tester.AbstractStrategyRunner.historicalCandleReceived(AbstractStrategyRunner.java:656)
at com.dukascopy.dds2.greed.agent.strategy.tester.StrategyRunner.run(StrategyRunner.java:470)
at java.lang.Thread.run(Thread.java:662)
Strategy tester: java.lang.NullPointerException @ lv.fxproject.strategy.StrategyCountingPipBoostRP.onBar(StrategyCountingPipBoostRP.java:134)
null: java.lang.NullPointerException
at com.dukascopy.indicators.WaddahAttarTrend.onStart(WaddahAttarTrend.java:36)
at com.dukascopy.charts.math.indicators.IndicatorsProvider.getIndicatorHolder(IndicatorsProvider.java:381)
at com.dukascopy.api.impl.Indicators.getCachedIndicator(Indicators.java:3914)
at com.dukascopy.api.impl.Indicators.calculateIndicator(Indicators.java:3962)
at com.dukascopy.dds2.greed.agent.strategy.tester.TesterIndicators.calculateIndicator(TesterIndicators.java:27)
at com.dukascopy.api.impl.Indicators.waddahAttar(Indicators.java:3808)
at lv.fxproject.strategy.StrategyCountingPipBoostRP.onBar(StrategyCountingPipBoostRP.java:134)
at com.dukascopy.dds2.greed.agent.strategy.tester.AbstractStrategyRunner.historicalCandleReceived(AbstractStrategyRunner.java:656)
at com.dukascopy.dds2.greed.agent.strategy.tester.StrategyRunner.run(StrategyRunner.java:470)
at java.lang.Thread.run(Thread.java:662)
Apr 15, 2012 2:58:39 PM com.dukascopy.api.impl.connect.TesterClientImpl$DefaultStrategyExceptionHandler onException
SEVERE: Exception thrown while running onBar method: null
java.lang.NullPointerException
at com.dukascopy.indicators.WaddahAttarTrend.onStart(WaddahAttarTrend.java:36)
at com.dukascopy.charts.math.indicators.IndicatorsProvider.getIndicatorHolder(IndicatorsProvider.java:381)
at com.dukascopy.api.impl.Indicators.getCachedIndicator(Indicators.java:3914)
at com.dukascopy.api.impl.Indicators.calculateIndicator(Indicators.java:3962)
at com.dukascopy.dds2.greed.agent.strategy.tester.TesterIndicators.calculateIndicator(TesterIndicators.java:27)
at com.dukascopy.api.impl.Indicators.waddahAttar(Indicators.java:3808)
at lv.fxproject.strategy.StrategyCountingPipBoostRP.onBar(StrategyCountingPipBoostRP.java:134)
at com.dukascopy.dds2.greed.agent.strategy.tester.AbstractStrategyRunner.historicalCandleReceived(AbstractStrategyRunner.java:656)
at com.dukascopy.dds2.greed.agent.strategy.tester.StrategyRunner.run(StrategyRunner.java:470)
at java.lang.Thread.run(Thread.java:662)

This specific exception got on USDCAD instrument. Using TesterClient which is run using 1 sec historical data. Although working period on which indicator gets called is larger 5, 10, 15 and 30 mins.

Of course previous version worked well with this Waddah indicator.

Best regards,
Andrey

P.S. I'm just curious what is relative amount of developers against testers in your JForex API related project team(-s) 1:2, 1:3? Do you have automated test suites, do you have regression suites, continuous integration, nightly builds?

We could not replicate the issue, could you please provide an example program which replicates the case?