Bug 204506 NPE block to create a aggregation builder including a argument such as Percentile function[0001]
Description: [Regression]NPE block to create a aggregation builder including a argument such as Percentile function[0001] Build number: 2.2.1.v20070924-1643 Steps to reproduce: 1, New a Sample Dataset from CUSTOMERS 2, New a table binding the dataset and group on COUNTRY 3, Drag a aggregation builder into the table 4, Specify the FUNCTION as Percentile, Data Field to dataSetRow["CUSTOMERNUMBER"], percentage to 0.5 and aggregate on Group1 5, Click OK to finish Expected result: The aggregation builder is created well Actual result: org.eclipse.birt.report.designer.core.runtime.GUIException: Caused by java.lang.NullPointerException occurs Error log: rg.eclipse.birt.report.designer.core.runtime.GUIException: Caused by java.lang.NullPointerException. at org.eclipse.birt.report.designer.core.runtime.GUIException.createGUIException(GUIException.java:76) at org.eclipse.birt.report.designer.internal.ui.util.ExceptionHandler.handle(ExceptionHandler.java:169) at org.eclipse.birt.report.designer.internal.ui.util.ExceptionHandler.handle(ExceptionHandler.java:150) at org.eclipse.birt.report.designer.internal.ui.util.ExceptionHandler.handle(ExceptionHandler.java:89) at org.eclipse.birt.report.designer.internal.ui.dialogs.DataColumnBindingDialog.okPressed(DataColumnBindingDialog.java:235)
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
{
		if ( left == right )
			return true;
		if ( left == null )
			return "".equals( right );
		if ( right == null )
			return "".equals( left );
		return left.equals( right );
	}
	private String getDataType( )
	{
		for ( int i = 0; i < DATA_TYPE_CHOICES.length; i++ )
		{
			if ( DATA_TYPE_CHOICES[i].getDisplayName( )
					.equals( cmbType.getText( ) ) )
			{
				return DATA_TYPE_CHOICES[i].getName( );
			}
		}
		return "";
	}
	public ComputedColumnHandle editBinding( ComputedColumnHandle binding )
			throws SemanticException
	{
		if ( isRef )
			return getBindingColumn( );
		if ( isAggregate( ) )
		{
			binding.setDisplayName( txtDisplayName.getText( ) );
			for ( int i = 0; i < DATA_TYPE_CHOICES.length; i++ )