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java.lang.NullPointerException, at org.eclipse.birt.chart.factory.Generator.getRowExpressions [message #339877]

Thu, 24 January 2008 15:19

Eclipse User

Originally posted by: Salvatore.Contu.gmail.com

Hi all,

I'm trying to create a chart programmatically, and like test I've copied
a method in org.eclipse.birt.chart.examples_2.1.1.v20070705-1847. My
Datasets are this:

TextDataSet categoryValues = TextDataSetImpl.create( new String[]{
"March", "April", "May", "June", "July"} );

NumberDataSet orthoValues1 = NumberDataSetImpl.create( new double[]{
12.5, 19.6, 18.3, 13.2, 26.5
} );

When Birt executes my class it always throws this exception:

java.lang.NullPointerException, at
org.eclipse.birt.chart.factory.Generator.getRowExpressions

Any idea ?

Thanks,
Salvatore

p.s: I am depressed for all these problems to create a very stupid and
trivial chart.

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