Bug 193231 RCP designer does not display Preview tab and View menu.
On RCP designer, Preview tab is missing and View Report menus. Please check the attached screen shot for detail.
viewer/org.eclipse.birt.report.viewer/src/org/eclipse/birt/report/viewer/utilities/ViewerClassPathHelper.java
}
			catch ( MalformedURLException e )
			{
				devDefaultClasspath = getArrayFromList( osgiDev );
			}
		}
	}
	public static String[] getDevClassPath( String id )
	{
		String[] result = null;
		if ( id != null && devProperties != null )
		{
			String entry = devProperties.getProperty( id );
			if ( entry != null )
				result = getArrayFromList( entry );
		}
		if ( result == null )
			result = devDefaultClasspath;
		return result;
	}
	/**
	 * Returns the result of converting a list of comma-separated tokens into an
	 * array
	 * 
	 * @return the array of string tokens
	 * @param prop
	 *            the initial comma-separated string
	 */
	public static String[] getArrayFromList( String prop )
	{