Bug 156322 Properties file without name should be forbidden to add to the resource folder
Steps to reproduce: 1.New a report, switch to Property Editor->Resources 2.Click "Add", add a properties file named ".properties" Expected result: This name is invalid Actual result: ".properties" is added to the resource folder but it can't be used in the report
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/resource/NewResourceFileDialog.java
text.setEnabled( file.isDirectory( ) );
					}
					else
					{
						text.setText( "" ); 
						text.setEnabled( false );
					}
				}
				else
				{
					text.setText( "" ); 
					text.setEnabled( false );
				}
			}
		} );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.dialogs.SelectionStatusDialog#okPressed()
	 */
	protected void okPressed( )
	{
		super.okPressed( );
		Object[] selected = getResult( );
		if ( selected.length > 0 && !newFileName.equals( "" ) ) 
		{
			ResourceEntry entry = (ResourceEntry) selected[0];
			File file = new File( entry.getURL( ).getPath( ) );
			try