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
String baseName = getStringProperty( this, INCLUDE_RESOURCE_PROP );
		if ( baseName == null )
			return new ArrayList( keys );
		keys.addAll( BundleHelper.getHelper( this, baseName ).getMessageKeys(
				ThreadResources.getLocale( ) ) );
		return new ArrayList( keys );
	}
	/**
	 * Checks if the file with <code>fileName</code> exists. The search steps
	 * are described in {@link #findResource(String, int)}.
	 * 
	 * @param fileName
	 *            the file name to check
	 * @param fileType
	 *            the file type
	 * @return true if the file exists, false otherwise.
	 */
	public boolean isFileExist( String fileName, int fileType )
	{
		URL url = findResource( fileName, fileType );
		return url != null;
	}
	/**
	 * Gets a list containing all the include libraries.
	 * 
	 * @return a list containing all the include libraries. Return
	 *         <code>null</code> if there were no include libraries defined.
	 */
	public List getIncludedLibraries( )
	{