Bug 156469 Should not new a file that is not a *.properties on resource file
Desctiption: Should not create a file that is not a *.properties on resource file when the resource folder has not any other *.properties Step: 1.Set the resource folder path is blank. 2.New a report project. 3.New a report design. 4.Click the blank area on layout. 5.Select Property Editor - General - Resources 6.Click Add to add a resource file. 7.The browse resource file is pop up and select Resource Folder. 8.Input any word in text field. Excepted result: It prompt that the file name must end with .properties Actual result: Click OK and the file is create.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/resource/NewResourceFileDialog.java
{
		public IStatus validate( Object[] selection )
		{
			int nSelected = selection.length;
			if ( nSelected == 0 )
			{
				return ErrorStatusNoSelection;
			}
			else if ( nSelected > 1 )
			{
				return ErrorStatus;
			}
			else if ( selection[0] instanceof ResourceEntry
					&& ( (ResourceEntry) selection[0] ).getChildren( ).length == 0 )
			{
				return OKStatus;