Bug 193913 Adding a aggregate with a column binding name that already exists should display a proper message
Build ID: 2.2RC3 Steps To Reproduce: 1.Add table to report 2.Add aggregation to table (Column Binding Name = "TEST") 3.Remove aggregate from table (the binding remains in the list of column bindings for this table) 4.Try to add the same aggregate to table (Column Binding Name = "TEST") This causes the error as shown below: An unexpected internal exception occurred.Please see log for detail. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Designer UI Plug-in ID:org.eclipse.birt.report.designer.ui Version:2.2.0.v20070613 Error Code:Error.GUIException.invokedByUnexpectedException Error Message:Caused by java.lang.NullPointerException. It should rather display a message that the binding already exists or just use the available binding for this aggregate. More information:
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
if ( groups[i].equals( binding.getAggregateOn( ) ) )
					{
						cmbGroup.select( i );
						return;
					}
				}
				cmbGroup.setEnabled( true );
			}
			else
			{
				btnTable.setSelection( true );
				cmbGroup.select( 0 );
				cmbGroup.setEnabled( false );
			}
		}
		else
		{
			btnGroup.setEnabled( false );
			cmbGroup.setEnabled( false );
			btnTable.setSelection( true );
		}
	}
	private String[] getGroups( )
	{
		if ( getBindingHolder( ) instanceof ListingHandle )
		{
			ListingHandle listingHandle = (ListingHandle) getBindingHolder( );
			String[] groups = new String[listingHandle.getGroups( ).getCount( )];
			for ( int i = 0; i < groups.length; i++ )
			{