Bug 138838 [Regression]Localization can't be set
Steps to reproduce: 1.New a report, add a Resource file "a.properties" for it 2.Add a label, select it, switch to property editor 3.Choose Localization, set key to "a", value to "actuate", add them to the resource file. 4.Select the key and value, click "OK" Expected result: "a=acutate" is added to the resource file and display text of lable is "actuate" Actual result: Read-Only File Encountered: File "XX\XX\a.properties_en_US.properties" is read-only, please make sure it can be written first. Note: the path for the resource file in the exception(XX\XX\a.properties_en_US.properties) is not the resource folder but the current workspace
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/resource/ResourceSelectionValidator.java
*            file extension to filter.
	 */
	public ResourceSelectionValidator( String[] ext )
	{
		this( false, false, ext );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.dialogs.ISelectionStatusValidator#validate(java.lang.Object[])
	 */
	public IStatus validate( Object[] selection )
	{
		int nSelected = selection.length;
		String pluginId = ReportPlugin.REPORT_UI;
		if ( nSelected == 0 || ( nSelected > 1 && multiSelect == false ) )
		{
			return EmptyStatus;
		}
		for ( int i = 0; i < selection.length; i++ )
		{
			Object curr = selection[i];
			if ( curr instanceof File )
			{
				File file = (File) curr;
				if ( acceptFolders == false && file.isDirectory( ) )
				{
					return EmptyStatus;
				}
				if ( ext != null )