Bug 191168 [Regression]Exception occurs when resize masterpage in library
Description: Exception occurs when resize masterpage in library. Build number:2.2.0.v20070606-0630 Regression bug:187443 Steps to reproduce: 1. New a library. 2. Go to Master Page, resize the master page using the ruler. Expected result: 1. Layout works correctly. 2. No exception is thrown out. Error log: An unexpected internal exception occurred.Please see log for detail. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Designer UI Plug-in ID:org.eclipse.birt.report.designer.ui Version:2.2.0.v20070606-0630 Error Code:Error.GUIException.invokedByUnexpectedException Error Message:org.eclipse.birt.report.designer.internal.lib.lalyout.LibraryReportDesignLayout
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
/**
	 * Identifier for the shared style name space.
	 */
	public static final int STYLE_NAME_SPACE = 0;
	/**
	 * Identifier of the name space that stores layout elements that appear in
	 * the Body slot.
	 */
	public static final int ELEMENT_NAME_SPACE = 1;
	/**
	 * Identifier for the parameter name space.
	 */
	public static final int PARAMETER_NAME_SPACE = 2;
	/**
	 * Identifier for the data source name space.
	 */
	public static final int DATA_SOURCE_NAME_SPACE = 3;
	/**
	 * Identifier for the data set name space.
	 */
	public static final int DATA_SET_NAME_SPACE = 4;
	/**
	 * Identifier for the master page name space.
	 */
	public static final int PAGE_NAME_SPACE = 5;
	/**
	 * Identifier for the theme name space.
	 */
	public static final int THEME_NAME_SPACE = 6;
	/**