TimeTableXYDataset getTimePeriod java.lang.NullPointerExcept

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reivilo59
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Joined: Mon Jan 19, 2015 3:32 pm
antibot: No, of course not.

TimeTableXYDataset getTimePeriod java.lang.NullPointerExcept

Post by reivilo59 » Wed Jan 28, 2015 10:01 am

Hello,

I've java.lang.NullPointerException when I want to copy a TimeTableXYDataset item of series to another TimeTableXYDataset.

TimeTableXYDataset SourceXYDataset = null;
TimeTableXYDataset TargetXYDataset = null;
int item = 0;
int series = 0;

..... I set SourceXYDataset data from a database.

TargetXYDataset.add(SourceXYDataset.getTimePeriod(item), SourceXYDataset.getYValue(series, item), SourceXYDataset.getSeriesKey(series));

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