Bug 151381 [Smoke]The parameter didn't display in the web viewer
Description: Preview a parameter in the web viewer, it can't be previewed. Step to reproduce: 1. new a report and a parameter 2. drag it to the layout 3. preview it in the web viewer Actual result: the parameter is not displayed
core/org.eclipse.birt.core/src/org/eclipse/birt/core/data/DataTypeUtil.java
default :
				throw new BirtException( pluginId,
						ResourceConstants.INVALID_TYPE,
						resourceBundle );
		}
	}
	/**
	 * convert a object to given class
	 * Classes supported:
	 * 		Integer.class
	 * 		BigDecimal.class
	 * 		Boolean.class
	 * 		Date.class
	 * 		Double.class
	 * 		String.class
	 * 		Blob.class
	 * @param source
	 * @param toTypeClass
	 * @return
	 * @throws BirtException
	 */
	public static Object convert( Object source, Class toTypeClass )
			throws BirtException
	{
		if ( toTypeClass == DataType.getClass( DataType.ANY_TYPE ) )
			return source;
		if ( toTypeClass == Integer.class )
			return toInteger( source );
		if ( toTypeClass == BigDecimal.class )
			return toBigDecimal( source );