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
public DesignElement getElementByID( long id )
	{
		if ( idMap == null )
			return null;
		return (DesignElement) idMap.get( new Long( id ) );
	}
	/**
	 * Returns the line number.
	 * 
	 * @param obj
	 *            the obj to query the line number, it can be
	 *            <code>DesignElement</code>, or <code>EmbeddedImage</code>,
	 *            or <code>IncludedLibrary</code>
	 * 
	 * @return the line number
	 */
	public int getLineNo( Object obj )
	{
		return lineNoInfo.get( obj );
	}
	/**
	 * Looks up line number of the element in xml source given an element ID.
	 * Returns 1 if no line number of the element exists with the given ID.
	 * 
	 * @param id
	 *            The id of the element to find.
	 * @return The line number of the element given the element id, or 1 if the
	 *         element can't be found or if IDs are not enabled.
	 * @deprecated {@link #getLineNo(Object)}
	 */