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/ResourceSelectionValidator.java
public ResourceSelectionValidator( )
	{
		this( false, false, null );
	}
	/**
	 * Constructor. No allow mulit select,
	 * 
	 * @param acceptFolders
	 *            allow select folder as result.
	 */
	public ResourceSelectionValidator( boolean acceptFolders )
	{
		this( false, acceptFolders, null );
	}
	/**
	 * Constructor. Not allow mulit select,
	 * 
	 * @param acceptFolders
	 *            allow select folder as result.
	 * @param ext
	 *            file extension to filter.
	 */
	public ResourceSelectionValidator( boolean acceptFolders, String[] ext )
	{
		this( false, acceptFolders, ext );
	}
	/**
	 * Constructor. Not allow mulit select, Not allow select folder as result.
	 * 
	 * @param ext